一级性生活片|劲爆欧美第三页|免费成人AV|成人hs视频|中文蜜桃久久

VORTEX QINGDAO CO.,LTD. is a large professional manufacturing factory which located in Shandong Province. Our main products as below:

1) Ductile iron Articulated Cable Pipe/Split Pipe(size DN40-400mm)and Accessories,Our Articulated Cable pipe systerm developed to protect shallow water abrasion and impact protection for Submarine cable.

2)Ductile iron Pipe and fittings(Size DN80- 2000MM),standards ISO2531 /EN545 /EN598.

3)Ductile iron pipe joints, such as Coupling,Flanged adaptor,dismantling joints,PE joints and saddle for drinking water systerm.

4)Valves,such as Resilient seated gate valve,knife gate valve,check valve.

5)SS304/201 repair clamp and ductile iron saddle clamp for DI/PE/PVC pipe

大口徑保護管安裝