Reducing the pipe material, including stainless steel reducer (304304l316316l), alloy steel, carbon steel pipe size reducer, reducer 20 steel q234q345 and so on. Manufacturing standards: GB / T12459, GB / T13401, HG / T21635, HG / T21631, SY5010, SH3408, SH3409, ASME / ANSI, B16.9 JIS B2311 / 2312/2313, DIN2605 / 2615/2616/2617 Steelstainless Steel Eccentric Reducers Specifications Nominal Dia DN ...