亚洲日韩中文字幕播放一区_日本精品一区二区VA在线_天天更新最近中文字幕完整视频_番里h肉3d动漫在线观看网站_毛片基地免费视频a_亚洲国产欧美91资源_好大好硬别停老师办公室视频_羞羞汗汗YY歪歪漫画AV漫画_亚洲欧美小说_国产妇女馒头高清泬20P多毛
- Home | Collection | Contact us
- Detailed content
PetroChina Kunlun Gas Pipelines 
From 2009 to 2011, we supplied spiral welded pipes for PetroChina Kunlun Gas Laiwu Co., Ltd. and PetroChina Kunlun Gas Haerbin Zhongqing Co., Ltd. and other companies for transportation natural gas pipelines project. The total weight is 9500 tons, the specifications of them are Φ323.9、Φ406.4、Φ508、Φ610, the materials are L245—L390.
- Video
| Copyright 2012 Liaoning Aotong Steel Pipe Co., Ltd. All Rights Reserved. Address: No.405 Anteng Road, Qianshan District, Anshan, Liaoning, China |