... /PE/PVC paper wrapped with anti-rust and anti-damp function in wooden cases.Delivery: Within 30 days.1.steel tube2. ... precision tube production standard, each production stage can be traced in the record.Standard: DIN2391, EN10305-1, EN10305-3.Steel ... GBK.Management standard: ISO9001:2000, TS16949.The tubes are specialized in automobile parts, motorcycle part, shock absorber, hydraulic cylinder, and ...