... & Seamless 3, Painted: black, varnish, antirust oil 1, Products: concentric reducer, eccentric reducer2, Thickness: SCH20, SGP, STD, SCH40, XS, SCH80, SCH160 ... , XXS 3, Dimension: 1/2" to 72" 4, Material: carbon steel, alloy steel, stainless steel5, Packing: wooden cases, wooden pallets ... DIN 2617 III JIS B2311 JIS B2312 JIS B2313 Steel Reducer