日本少妇激三级做爰在线,亚洲区小说区图片区qvod

色爱综合另类图片av,漂亮人妻洗澡被强BD中文,亚洲色av天天天天天天,国产偷抇久久精品A片蜜臀A

Home | Collection | Contact us

The company has eleven sets of spiral welded steel pipe production unit with international modern levels and a set of production line of modern 3-layer PE Anti-corrosion coatings. The outer diameter(OD) of spiral welded pipe from Φ219mm to Φ3600mm, the wall thickness of spiral welded pipe from 6mm to 25mm, steel grade from A25-X80.

Detailed content

Dahuofang reservoir pipelines

Our company supplied spiral welded pipes for Fushun Dahuofang reservoir to Shenyang water treatment plant pipeline project. The whole pipeline long 120km, the total weight is 28000 tons, the specifications of them are Φ2620、Φ2420、Φ1620、Φ1420, the material is Q235B. The whole pipeline acrossing Hun river and the total investment is 8 billion.

Video