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Three ring flange professional production of stainless steel flange varieties are: large diameter flat welding flange, large diameter stainless steel flange, large diameter flange, large diameter flange, flat welding flange, butt welding flange, neck flat welding flange, neck butt welding flange, American standard flange, German standard flange, Japanese standard flange; the production of flange diameter DN 10 -- DN 6000 large diameter flange national standard, American Standard, Japanese standard, non-standard and pressure standard Our technology is one-time forging, smelting, forging, turning, drilling one-stop service, price concessions, quality assurance! Materials: stainless steel 304, 321, 304L, 316L, 316, 316Ti, etc., can be customized according to customer requirements, welcome to new and old customer guidance, negotiation and cooperation!