Manufacturing and supplying the CAPS high quality and very good prices! welcoming your inquiries! thanks! ... details as followings:BUTT-WELDED PIPE FITTINGS (Elbows, Tees, Reducers, Caps, Etc)Dimension Standard: ANSI B16.9 / B16.28,/DIN/ ISO ... : steelandcoal (at)163 (dot) com mobile: 86-15513807030 ASTM A234 CAPS