... of elbow,Butt Weld equal tee, reducer, cap, nipple, bend and flange. carbon steel pipe cap A234Our company is professionally specialized in ... producing 1/2"-48" carbon steel pipe fittings which are widely used in chemical, gas, petrochemical, ship ... .the products mainly include the elbow, Butt Weld reducing tee, reducer, cap, nipple, bend and flange.Size: from 1/2" to ...