About Us


Qingdao Great Steel Machin 国产又色又爽又黄的视频 ; Machining Co 国产又色又爽又黄的视频 td.(GSMM)  w 国产又色又爽又黄的视频 as founded 美女做爰内谢免费视频 in 1 美女做爰内谢免费视频 987, locat 天天综合网久久综合 ed in Q 天天综合网久久综合 ingdao City, Sh 真实14初次破初视频在线播放 andong 真实14初次破初视频在线播放 Province, P.R.China. 

With over 30 years experience, GSMM is proud to be a famous supplier in farmland irrigation  facilities, electric transmission and  distribution, wireless communications, lighting and traffic  structures, etc. For now, GSMM has built two plants to provide a variety of carbon steel, stainless steel cutting processes, welding processes , punching and drilling processes, and surface treatment processes.