网站首页 | 加为收藏 | SITEMAP
网站首页 环氧树脂管,金刚石绝缘板,U型绝缘槽,电解槽绝缘材料,锥面套,环氧板加工,环氧层压玻璃布板,烟道绝缘管,短路口绝缘材料,绝缘插板 关于华工 环氧树脂管,金刚石绝缘板,U型绝缘槽,电解槽绝缘材料,锥面套,环氧板加工,环氧层压玻璃布板,烟道绝缘管,短路口绝缘材料,绝缘插板 产品展示 环氧树脂管,金刚石绝缘板,U型绝缘槽,电解槽绝缘材料,锥面套,环氧板加工,环氧层压玻璃布板,烟道绝缘管,短路口绝缘材料,绝缘插板 新闻资讯 环氧树脂管,金刚石绝缘板,U型绝缘槽,电解槽绝缘材料,锥面套,环氧板加工,环氧层压玻璃布板,烟道绝缘管,短路口绝缘材料,绝缘插板 公司资质 环氧树脂管,金刚石绝缘板,U型绝缘槽,电解槽绝缘材料,锥面套,环氧板加工,环氧层压玻璃布板,烟道绝缘管,短路口绝缘材料,绝缘插板 在线留言 环氧树脂管,金刚石绝缘板,U型绝缘槽,电解槽绝缘材料,锥面套,环氧板加工,环氧层压玻璃布板,烟道绝缘管,短路口绝缘材料,绝缘插板 联系我们
环氧树脂管 | 绝缘板及加工 | 铝业电解槽绝缘材料 | U型绝缘槽板 | 金刚石高分子绝缘板 | 打壳出铝装置绝缘材料
绝缘棒
环氧树脂管
绝缘板加工
耐高温U型绝缘槽
金刚石高分子绝缘板
铝业电解槽绝缘材料
打壳出铝装置绝缘材料
电解槽短路口绝缘材料
HP-5耐高温云母绝缘系列
环氧层压玻璃布板
石棉橡胶板
SMC绝缘板
玻璃钢绝缘管
环氧酚酚层压玻璃布板
扬州华工电气有限公司
地址:江苏省宝应县柳堡镇工业集中区
电话:0514-88779789
手机:13348142959
传真:0514-88776055
邮箱:yzhuagong@foxmail.com
扬州华工电气有限公司-环氧树脂管,金刚石绝缘板,U型绝缘槽,电解槽绝缘材料,锥面套,环氧板加工,环氧层压玻璃布板,烟道绝缘管,短路口绝缘材料,绝缘插板
环氧树脂管,金刚石绝缘板,U型绝缘槽,电解槽绝缘材料,锥面套,环氧板加工,环氧层压玻璃布板,烟道绝缘管,短路口绝缘材料,绝缘插板 铝电解槽风格板 您的位置:网站首页 > 产品展示 > 铝业电解槽绝缘材料

铝电解槽风格板

作者:admin 关键词:铝电解槽风格板 日期:2014-05-31 15:54:20 人气: 标签:
<**** _fckxhtmljob="5">铝电解槽风格板 ,又名高分子绝缘板,电工石棉花水泥压力板 是用温石棉和水泥为基本原料,采用园网抄取法的制板机抄板坯、切边和油压等工艺制造而成。该板经过加工及绝缘漆浸渍处理后可作为电器开关底板,成为电气绝缘材料。具有质坚、耐腐、抗冻、耐热、绝缘等性能,可用作高温电弧作用的电机、电器零件的隔板,也可在温度较大的场所作隔电使用。<**** _fckxhtmljob="5"> ****的制造厂家,价格合理质量保证.<**** _fckxhtmljob="5"> 1、铝电解槽风格板外观:表面平整光滑、无裂纹和孔洞,边缘有毛刺。<**** _fckxhtmljob="5">2、风格板绝缘砖标称长度、宽度、厚度及公差:(见表1)单位:mm<**** _fckxhtmljob="5"><**** ****="font-size:12px;width:561px;cursor:default;color:#333333;font-family:Tahoma, Arial, 宋体, sans-serif;text-align:left;border-spacing:0px;" cellspacing="0" cellpadding="0" border="1" _fckxhtmljob="5"><**** _fckxhtmljob="5"><**** _fckxhtmljob="5"><**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:windowtext 1pt solid;padding-left:0px;padding-bottom:0px;margin:0px;border-left:windowtext 1pt solid;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" colspan="2" _fckxhtmljob="5">

长度

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:windowtext 1pt solid;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" colspan="2" _fckxhtmljob="5">

宽度

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:windowtext 1pt solid;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" colspan="3" _fckxhtmljob="5">

厚度

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:windowtext 1pt solid;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" colspan="2" _fckxhtmljob="5">

表面曲度

<**** _fckxhtmljob="5"><**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:windowtext 1pt solid;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

尺寸

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

公差

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

尺寸

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

公差

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

尺寸

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

公差

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

不均匀限度

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

长边

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

宽度

<**** _fckxhtmljob="5"><**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:windowtext 1pt solid;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

2400

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

±5

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

1200

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

±4

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

51015

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

±1.00

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

1.2

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

1.5

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

1.0

<**** _fckxhtmljob="5"><**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:windowtext 1pt solid;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

2400

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

±5

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

1200

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

±4

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

202530

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

±1.50

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

2.0

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

2

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

1.5

<**** _fckxhtmljob="5"><**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:windowtext 1pt solid;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

2400

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

±5

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

1200

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

±4

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

354050

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

±2.0

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

3.0

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

2.5

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

2.0

 3、L型高分子石棉绝缘砖物理技术指标(见表2

<**** _fckxhtmljob="5"><**** ****="font-size:12px;width:549px;cursor:default;color:#333333;font-family:Tahoma, Arial, 宋体, sans-serif;text-align:left;border-spacing:0px;" cellspacing="0" cellpadding="0" border="1" _fckxhtmljob="5"><**** _fckxhtmljob="5"><**** _fckxhtmljob="5"><**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:windowtext 1pt solid;padding-left:0px;padding-bottom:0px;margin:0px;border-left:windowtext 1pt solid;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

序号

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:windowtext 1pt solid;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

指标名称

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:windowtext 1pt solid;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

单位

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:windowtext 1pt solid;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

指标

<**** _fckxhtmljob="5"><**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:windowtext 1pt solid;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

1

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

抗压强度

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

Kg/cm2

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

400

<**** _fckxhtmljob="5"><**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:windowtext 1pt solid;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

2

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

抗冲击强度

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

Kg/cm2

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

60

<**** _fckxhtmljob="5"><**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:windowtext 1pt solid;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

3

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

体积电阻系数

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

Ω·cm

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

1.0×1012

<**** _fckxhtmljob="5"><**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:windowtext 1pt solid;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

4

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

击穿强度

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

V

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

4000

<**** _fckxhtmljob="5"><**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:windowtext 1pt solid;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

5

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

吸水率

<**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5"> <**** ****="border-right:windowtext 1pt solid;padding-right:0px;border-top:medium none;padding-left:0px;padding-bottom:0px;margin:0px;border-left:medium none;cursor:text;padding-top:0px;border-bottom:windowtext 1pt solid;" _fckxhtmljob="5">

0.8~1%

<**** _fckxhtmljob="5">铝电解槽风格板生产车间图片烩粹:<**** _fckxhtmljob="5">高分子绝缘板

铝电解槽风格板加工件,可根据客户图纸进行加工,金刚石绝缘半套  L型绝缘砖 槽板
 
本公司定制各类型的铝业电解槽绝缘材料!因为专一生产,所以我们更****!商品以实际价格为准!量大需要一定的生产周期!量大优惠!欢迎来电咨询!
铝电解槽风格板生产厂家华工电气提醒:欲了解更多铝业电解槽绝缘材料,请致电0514-88779789我公司网络销售部门了解更多。

本文网址:
网站关键词:环氧树脂管,金刚石绝缘板,U型绝缘槽,电解槽绝缘材料,锥面套,环氧板加工,环氧层压玻璃布板,烟道绝缘管,短路口绝缘材料,绝缘插板
版权所有 © 2007-2021 扬州华工电气有限公司 地址:江苏扬州柳堡工业区 http://www.yzhuagong.com 苏ICP备11082155号-1
友情链接:绝缘板,绝缘管,光纤激光打标机,SBS防水卷材,厦门市集美区杏林联雅广告公司,触摸一体机,电解槽绝缘材料,耐高温云母板,扬州华工电气,U型绝缘槽,高分子绝缘板,环氧树脂管,