1 1 ASTM A182 F347H Pipe Fittings In Haihao Group ... INQUIRY PRODUCT DETAIL 1 ASTM A182 F347H Pipe Fittings In Haihao Group Share: RELATED PRODUCTS Spiral submerged arc welding (SSAW) Stainless steel LSAW pipe Stainless steel ERW pipe Seamless (SMLS) steel pipe Spectacle Flange Integral Flange(Long Weld Neck Flange) Orifice Flange Loose Flange(Lap Joint Flange).