1. BUTT WELD PIPE FITTINGS : 90 LR ELBOW ; 45 LR ELBOW; 90 SR ELBOW ; 45 SR ELBOW; EQUAL TEE ;RED TEE ; CON REDUCER ;ECC REDUCER;END CAP;CROSS; HOT BENDMATERIAL STANDARD: ASTM A234WPB A420WPL6 A860WPHY42 WPHY52 WPHY60 WPHY65 A403 WP304 WP321 WP316DIMENSION STANDARD: ANSI B16.9 B16.28 B16.25(BEVEL END) MSS SP-43 MSS SP-75 DIN 2605 DIN 2606 DIN 2615 DIN 2616 JIS B2311 JIS B2312 JIS B2313