精品一区二区三区无码av孕妇,久久99精品久久只有精品,久久久国产精华液2023,97久久久人妻一区精品,人妻体内射精一区二区

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.

精品一区二区三区无码av孕妇,久久99精品久久只有精品,久久久国产精华液2023,97久久久人妻一区精品,人妻体内射精一区二区