Features: 1) Dust-proof, water-resistant and high temperature endurance 2) Competitive price 3) Prompt delivery 4) Small orders are acceptable 5) Customer's drawings and samples are acceptable 6) Customer's logos are acceptable Precision Seamless carbon or quanlity carbon steel tube/pipe Features: 1) Standard:DIN2391 GB/T3639 ASTM A106 A516 A513 etc 2)Grade: 100Cr6,SUG2,GCr15 3) Sizes: O.D :10mm- 120mm; W.T:1 15mm 5) Packing:hexagonal bundle packing ,case packing,both end are potected by plastic caps or others 6)Production condition:GKZ+K GKZ+K+G GKZ+K+GBK GKZ+KP+SZ 7)All steel tube can test Ultrasonic flaw detector ,eddy current flaw detector ,and Magnetic detector depend on costomers requirement