Welding-neck flange

"Focusing on clients, paying attention to quality, building up credit, creating brand" are our tenets and goals of manufacturing and operating.

We have the export right and a consummate management institution. We have got ISO9001:2000 international quality system certification (DNV) and the Europe Union Product Quality Certification (TUV). Therefore, we have the capacity and strength of carrying on the large quantities of orders at home and abroad.

Our company has an annual capacity of 30000 tons. Our wind power tower shelf flanges carry out standard of Q/140921AYDZ001-2007 with the specification of 2200mm-5000mm. We can process all kinds of large rings and fittings according to clients' demands. Our forged steel flanges comply with ANSI B16.5, DIN, JIS B 2220, B2210, BS4504, and GB standards. As to non-standard products, we hope clients can provide us with technical data. Our leading products include 7 categories, such as welding neck, lap joint, socket welding, slip-on, threaded, blind, and flat, and the specification is from 1/2'' to 80''. Our products are mainly exported to Japan, Korea, and other countries in Southeast Asia, North America, and Europe. The quality of our products is high. We keep promise and honor the contract. Therefore, we are prized and trusted by clients at home and abroad.

Our company adopts domestic advanced forging technique of cold cutting, blanking, and ring opening by forging, pressing, and ring rolling and molding. The quality of our products is stable and efficient. Our main manufacturing equipment and testing apparatus are four 500t-1000t rod shears, 20 band sawing machines, one 4000t oil hydraulic presses, and eight clip bar hammers; two 2t pneumatic hammers plates and twelve 250kg-1000kg pneumatic hammers; one D53-5000 rolling machine, one D52-1250 horizontal rolling machine, six D52-250 to D52-800 vertical rolling machines, three 3000-5000 heat treatment electric furnaces, 145 common lathes, 4 numerical-control lathes, two CX6020-C standing lathes, and nineteen C516A vertical lathes: three 1250, two 1600, one 2500, one 3500, and ten 4000 numerical-control lathes, and two 5000 numerical-control lathes; five DVP500*25/32 lathes, and thirty-one common drilling machines; seven radial drilling machines and twenty-four vertical drilling machines; two packing production lines; imported spectrum testing apparatus, physical and chemical testing and nondestructive evaluation testing apparatus.

1.we are one of the biggest companies manufacturing all kinds of forged flange in China.
2.The material is carbon steel flange