1) standards:British(BS),American,DIN 2) banded,beaded,plain;Galvanized and black 3)H,HE,HF,HB,GF 4)OEM/ODM malleable iron pipe fittings on the basis of ISO5922, ISO49, ISO71, KSB1531, GB3287, BS EN10242, EN1562, ISO228,EN10226,ASTM A197, ASME B16.3,ASME B1.20.1, DIN2950, DIN1692,DIN2999,1)standards: British standard(BS), American standard, and DIN standard. 2)It includes: ELBOW, TEE, SOCKET, ...