1.Produce good quantity seamless steel tube 2.Totally , Design depand on client 's ... Annealing Seamless Steel Tube 1) Certificate: ISO9001:2000, TS16949.. 2) Spec.: DIN2391-94/C, 3) Steel Gr.: St35, ... : 0.5mm-10mm 6) Max length:12m 7) Package: bundled and wrapped in plastic, or wooden case, or ... , or in the occasion where the requirement for antirust and anticorrosion of outer wall is relatively high