国产精品无卡毛片视频_无码国产福利av私拍_少妇激情av一区二区_免费A级毛片无码蜜芽欣赏网-国产一级a毛一级a看免费人娇-亚洲日韩精品射精日

Technology Center

 R & D team

Since its establishment, the company has been applying itself to independent innovation, development and improvement of core technology. With over 40 years’ development and accumulation, it has got its unique design and manufacturing technology by using modern design analysis technique to develop new techniques constantly.

 

The company, with involved industries including mines, building materials, coals, wind power and motors, mainly produces precise steel structure products. It aims to make the most professional R & D and production base of precise steel structure products in China. Its technical research center of precise steel structure parts is able to make individual development according to user requirements.

 

Quality Control

Already passed ISO9001 (2000), GJB9001A-2001, OHSAS18001 and ISO14000 management system authentication, as well as authentication of CCS, TUV, GL, NK, BV, ABS and LR.

国产精品无卡毛片视频_无码国产福利av私拍_少妇激情av一区二区_免费A级毛片无码蜜芽欣赏网-国产一级a毛一级a看免费人娇-亚洲日韩精品射精日