Concentric and eccentric carbon steel reducer Size: 1"-16" Material: WPB A234 or according to customer requirement. Type: Butt-welded seamless carbon steel pipe reducer Wall thickness: From Sch5s up to Sch160 / SGP/STD/X-S/ XX-S. Standard: ISO, GB, ASME (ANSI) B 16.9, JIS, DIN Applicable range: petroleum products, chemicals, natural gas, power plant, machinery, electronics, shipbuilding, metallurgy, nuclear power and construction projects.