ASTM A234 WP11 Fittings are versatile devices that are designed to characterize the flow in the system. These fittings are a chrome-moly grade that gives it enhanced resistance to reducing and corrosive media.We Supply ASTM A234 Gr WP11 Reducer With MTC And NDT Test Certificates, Leading Exporter Of A234 WP11 Cl2 Buttweld Fittings