Products
The global layout
Regular contact with international advanced steel pipe manufacturers Perform technical benchmarking
Our products are exported to Russia, The United States, Italy, Australia, Kazakhstan, Turkmenistan, Uzbekistan, Iraq, Turkey and other countries.
Research Achievement
It has strong technical research and development strength, 17 provincial and ministerial scientific and technological achievements awards and 56 patents
More
About us
The company is the backbone supplier of national key oil and gas pipeline projects such as CNPC, SINOPEC and Cnooc, and has participated in almost all major oil and gas pipeline projects in China since 2002
More
HSE Philosophy
Health, Safety and environmental protection
Copyright ?Julong Steel Pipe Co.,Ltd. Website record:冀ICP備 05018103號-1
Technical Support:Seven star network
Home Tel Contact
女人下面被添图片A片,国产免费破外女真实出血视频,无码无套少妇毛多18P,精品亚洲AV无码一区二区三区
BT天堂在线WWW资源| 无码AV一区在线观看免费| 国内自产视频区| _亚洲成女人图区| 国产精品亚洲а∨天堂2021| 亚洲熟妇自偷自拍另类图片| 色综合久久综合欧美综合网| 国产亚洲AV电影院之毛片| 国产专区青青在线视频| 13p狠狠狠的在啪线香蕉|