麻豆午夜福利国产高潮偷啪,欧美牲交videossexeso欧美

国产成人无码午夜视频在线观看,国产日韩综合一区二区性色av,亚洲熟伦熟女新五十路熟妇,成人极品影院

<
  • 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
Home |  About us |  Product |  Equipment |  Honors |  Splendid |  Project |  Network |  Contact us
Copyright  2012 Liaoning Aotong Steel Pipe Co., Ltd. All Rights Reserved.
Address: No.405 Anteng Road, Qianshan District, Anshan, Liaoning, China