... in China(mainland), located in Qingdao, Shandong province. We manufacture flanges in accordance with specifications adopted and issued by ... ASME, DIN, JIS, BS and other engineering standard groups. We are supplying flanges in Stainless Steel , Carbon Steel .The types of ... our flanges are Slip on, Welding Neck, Blind, Plate, Socket Welding, Threaded, ...