国产亲子伦一级A片,欧美激情在线精品一区二区三区,国产亚洲精品久久久久久郑州,专干老妇熟女6070频

Sealtex old website/ Contact us/ 中文

Home
About us
Sealtex Co., Ltd has been working on manufacturing, processing and distributing sealing and thermal insulation products. We aim to advocate “totally non-asbestos”and push it forward by developing and adopting environmentally friendly products. With professional knowledge, worthy quality (products) and timely after-service, we have gained good reputation in the field.
News
recent news
Materials
Raw materials
Manufacturing
Quality
Our factory has obtained ISO9001 quality system certification, IATF16949 certification, special equipment manufacturing license and so on.Our materials obtained RoHS, REACH, UL, DVGW, FDA and other international environmental certification
- Quality
- Material Certificate
Technical
Contact

News center

The current position | home page > News and information > Enterprise dynamic

SEALTEX ST-2058 KTW water certification

This Guideline can be used to assess elastomers in contact with drinking water within the meaning of the Drinking Water Ordinance
This is the main standard for elastomer materials in contact with drinking water in Germany.

up back down

Home|About us|News|Materials|Manufacturing|Quality|Technical|Contact|

Hotline
021-33674800 /18019714807

Copyright?2008-2019 Sealtex.cn,All Rights Reserved.
AQ：滬ICP備09044353號-1

真人做爰A片免费观看茄子视频 | 亚洲国产精品99久久久久久久 | 国产做爰XXXⅩ高潮网站预告片 | 人人妻人人澡人人爽久久av | 亚洲色偷精品一区二区三区 | 午夜精品无码久久综合网 | 午夜精品久久久久久久91蜜桃 | 日韩精品一区在线 | 国产精品一级毛片无码 | 欧美性猛交ⅩXXX乱大交吃奶 | 国产黄色视频在线 | 韩国极品少妇XXXXⅩ视频 | 99久久综合精品国产成人一区无码 | 国产欧美综合视频 | 国产乱婬AAAA片视频 | 亚洲无码视频在线观看 | 无码人妻一区二区三区水牛网 | 亚洲日韩精品在线 | 少妇做爰全过程毛片久久妖精99 | 欧美一级婬片A片免费老牛国产成人一区二区福利视频 | 中文在线字幕免费观看 | 久久久久国产一区二区三区 | 美女黄色视频网站 | 亚洲AV无码乱码A片秀色直播 | 亚洲欧美另类在线 | 99精品一区二区三区 | 国产又爽又黄 A片一级毛片免费观看 | 国产一级a毛一级a看免费人娇 | 一级全黄少妇免费录像片 | 精品人妻一区二区三区换脸明星 | 法国特级婬片A片免费看 | 无码精品人妻一区二区湖北九色 | 一级做a爰片久久毛片A片 9 1? | 国产黃色A片三区三区三小说 | 久久夜色精品国产欧美乱 | 亚洲AV无码片久久精品 | 潮喷失禁大喷水无码樱井ZZ | 亚洲AV无码成人影院一尤物区 | 免费无码婬片AAAA片直播软件 | 色偷偷AV老熟女一区二 | 亚洲一级av无码毛片久久精品 |