Name: reducer Material:A234-WPB.A420-WPL6.A234-WP12.A234-WP11.A234-WP5.A403-WP304.A403-WP304L.A403-WP316.A403-WP316L. Size:1/2"-48"、DN15-DN1200 Pressure:Sch5-Sch160、XXS Standards: ISO, ANSI. JIS. DIN GB/T12459、GB/T13401、ASME B16.9、SH3408 SH3409、HG/T21635、HG/T21631、SY/T05010 Use:Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc.