... pipes & tubes 1.Standard:DIN,ASTM,API,GOST8731 2.Grade:st35.4,st37,A53/A106/API 5L-B 3.Size:1/8 ... steel pipe (cold drawn steel pipe )StandardDIN17175,DIN1626,DIN2448,DIN17120,API 5L, API 5CT, ASTM A106, ASTM A53,ASTM A179,ASTM A210,ASTM ... ,GOST8731MaterialGr. B, Gr. C; X42,X46,X52,X60,J55,K55,N80; st37,st42,st42-2,st45.8,st52,Gr 20,STPG410 ...