Profile: Qinhuangdao yanye flange manufacturing co ltd specializes in carbon steel flange and stainless steel flange. Our product line includes ANSI flange, Din flange, ADSI flange, socket welding flange, lap joint flange and slip-on flange. We use vertical rolling leveler, vertical machine, digital machine, and machine by hydraulic pressure equipment. We serve metallurgical, electric, chemical and building material industries.