The products include various rings, forgings, high, medium, and low pressure flanges, etc., made of materials such as 20 #, A105, Q235A, 12CrlMov, 16MnR, 15CrMo, 321, 304, 304L, 316, 316L, etc. The products can be produced using American standards such as ASME (ANSI), German standards (DIN), Japanese standards (JIS), as well as national standards such as GB, JB, SH, HG, etc. Various materials, irregular shapes, non-standard, giant rings, giant flanges, and giant forgings can also be customized according to customer requirements.