中文а∨天堂在线_97AV无码人妻秘书_中文字幕无线码一区2020青青_久久无码色综合中文字幕

搜索
 
News Center
  • Date:2022-04-14?
    Hongsheng Plastic (Hangzhou) Co., Ltd. was established in 1992 with a registered capital of RMB 108 million. It is a company integrating plastic product production and equipment manufacturing. The production base is located on the south bank......
  • Date:2019-07-14?
    We can see that PE pipes are used in a relatively large amount around us, and they also have unique advantages, so we must master its welding methods. How many welding methods does it have? It will be introduced to you in the next article......
  • Date:2019-07-05?
    In order to meet the needs of the project, PE pipes are usually connected, and there are many connection methods for this pipe, such as flange connection, electrofusion connection, etc. Each connection method has its own advantages......
Total 3 strip Page:1/1
?

Online
service

?

Online serviceservice hours:9:00-18:00

Select customer service communication:

?

Hotl
ine

?

0571-82468855
Consulting service hotline

?

WeChat
scan

WeChat public account