Name:Hydraulic Oil Pipe/ High Pressure Cold drawn Seamless Pipe Brand Name: GL PARTS Place of Origin: China Material: ST52,CK45,4140,16Mn,42CrMo,E355. Standard: EN10305-1, EN10305-4, DIN2391 Main Size : OD: 4.0–75mm, WT: 0.70—10.0mm Length: max 12m Heat Treatment: BK, BKS, BKW, GBK, NBK Protection: Anti-rust oil on inside and outside surface, plastic caps in both ends. Packing: Bundle with steel strip and PE sheet or wooden case