... )Leading Professional Manufacturer of Malleable iron pipe fittings 2)Certificate: ISO, SGS, ITS, BSI 3) High quality Galvanized Malleable Iron Pipe ... , PlainRibswith Rib or without RibBrandO,Q,HG,HE,BTMaterialISO 5922, ASTM A197DimensionEN 10242, ASME B16.3, ISO 49, BS 143, SI 255 ... Iron MaterialsKTH 350~10, KTH 300~06, KTH 330-08 Black HeartThread StandardISO 7/1, NPT ANSI B1.20.1, DIN2999Mechanical ...