... .ISO14001 ISO9001 CE 5.competitive seamless carbon steel pipe fittingswe are manufacturer for carbon steel pipe and fittings,like 45deg,90deg,180deg,L/R ... OR S/R,bend ,equal or reducing tee, CON reducer, ECC reducer, pipe ... STANDARD: ASTM/ANSI,DIN,ISO,GB,JIS,BS OTHERS: 1. Special design available according to requirement 2. All the production process ...