Taiyuan Mining Machinery Group Co., Ltd. (TMM Group) is one of the biggest manufacturers in the fields of metallurgy equipment, steel & ductile iron castings, welding products and forgings in China. TMM Group was established in 1925 and it is a large state-owned enterprises. TMM Group has more than 2,000 employees that including 400 senior technical engineers. In 2011, the sales turnover of TMM Group exceeds one billion US Dollars. Taiyuan Mining Machinery Import & Export Co., Ltd. is fully-invested subsidiary company of TMM Group to deal with all business related to export and import of the whole group. Since 2005 after reshuffle, TMM Group has been a combined enterprise of Taiyuan Heavy Machinery Group.TMM Group mainly manufactures metallurgy equipment, and welding, forging and steel & ductile iron castings. The main metallurgy equipment includes High Speed Wire Rod Rolling Mills, Bar Rolling Mills, Spiral Welded Pipe Mills, ERW Mills, Hydrostatic Testers, Chamfer Machines, Slitting Lines, Shear Lines as well as various spare parts and accessories. TMM Group has supplied many complete sets of Rolling Mills, Spiral Welded Pipe Mills and ERW Mills to America, Indonesia, India, the Philippines, Turkey, Singapore, Vietnam and other Southeast Asian countries. At the same time, TMM Group also has supplied a lot of OEM spare parts and accessories to American, German and other European markets with a total value of more than ten million US dollars. TMM Group has branch factories to produce products of steel castings, investment castings, ductile iron castings, welding products and forgings. TMM Group's steel casting branch factory produces steel castings with range from 10kg to 10000kg as per clients' drawings and technical requirements. We have an annual capacity of 30 thousand tons of steel castings and insist on strict quality control system. Both ISO9001 and American ABS certificates have been awarded. The main products are castings used in heavy machinery in military and civilian industry, such as planet carriers and bodies of gear box, manganese and alloy steel track shoes, hammers, tooth, axles, engine blocks, racks, etc. The main related materials are carbon, alloy, high alloy steel, manganese steel, special manganese steel and wear steel.TMM Group's ductile iron casting branch factory mainly produces ductile iron manhole covers & frames, ductile iron gulleys as per standard EN124, ductile iron pipe fittings, PVC Fittings, MJ joint fittings, Express joint fittings, ductile iron couplings, flange adaptors and dismantling joints as per standard ISO2531, EN545 and AWWA C110. The annual capacity of ductile iron products is 20 thousand tons and both ISO9001 and SGS certificates have been awarded. TMM Group's investment & precision casting factory produces accessories & fitting parts for automobile, engineering machine, railway, ship building, medicine and military industries as well as other investment castings as per clients' drawings. The annual capacity is 10 thousand tons and ISO9001 certificate has been awarded. TMM Group also manufactures OEM products as per clients' design and technical drawings in the fields of steel casting, investment casting, and iron casting, forging and welding.Our aim is providing the products with the best quality and service for our clients and having all of our clients to be satisfied by all of our works, which commence with clients' demand and finish with clients' satisfaction.