Material A105, A350LF2 ,A694, RST37.2 S235JR;S275JR;S355JR;S420NL;S460NL;P245GH;P250GH;P265GH;P280GH;S355GH;C45(E);42CrMo4;34CrNiMo6;080M15;etc.A182F1,A182F304,A182F304L,A182F316,A182F316L,etc. Size 1/4"-144'' , Dia 73mm-6500 mm Protective Coating Anti-rust Oil, Black or Yellow Painting, Hot-dip Galvanized. ProcessRaw material incoming test→ Cutting→ Heating→ Forging→ Heat treatment→ Rough Machining→ UT Test→ Finish Machining→ Final Inspection→ Stock & DeliveryQuality Assurance System -Certificate of Conformity of the Factory Production Control : Hot Rolled Productes of Structural Steel (CE) -Managment system as per GB/T 19001-2016/ ISO 9001 : 2015 (TUV NORD) -Managment system as per GB/T 24001-2016/ ISO 14001: 2015 (TUV NORD) -Managment system as per OHSAS 18001 : 2007 (TUV NORD) -TUV NORD Systems Gmbh & Co. KG (TUV NORD) About us Shanxi Tianbao group CO., LTD is one of the most professional wind tower flanges company. Established in January 2008, located in Dingxiang country, Xinzhou City, Shanxi Province, China. Registered capital is 180 million RMB. Our company has oil pressure, rolling ring, physical and chemical, flaw detection and other technical personnel and engaged in forging, machining and other technical workers for years, formed a strong operation team of production management, equipment technology, operation team. The development private joint-stock enterprises of dingxiang county and one of the largest investment scale in recent years. Our products have a good reputation in China and become the first choice of more than 40 power companies and manufacturers. Qualified supplier of GE, SGRE, VESTAS, GLOD WIND and other companies. We obtained the special equipment manufacturing license issued by the general administration of technology supervision of China, and passed the German TUV three system certification, CE certification, Beijing electric power PCCC product certification, military industry certification, confidentiality certification, and classification society certification and so on.
https://www.tbflange.com/din-flanges/