key products:stainless steel pipe/plate/bar,The main material is 201 202 304/L 309 310/S 316/L 317/L 321 410 430 904L with famous international standard. About oil casing pipe, product range is from 4-1/2ĄŻĄŻ to 20ĄŻĄŻ and wall thickness from 2-3/8ĄŻĄŻ to 4-1/2ĄŻĄŻ. Material include J55, K55, N80, N80Q, P110 etc, thread type is BTC, STC, LTC.