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1. Standard:DIN2391,DIN17175,EN10305-1,etc
2. Size ranges: OD 6-85mm,WT 1-8mm
3.Precision: OD +/-0.05mm,WT +/-0.05mm.Special accuracy:+/-0.03mm
4. Length: 4.8-10m,random length or fixed length
5. Surface : oiled , galvanized , phosphate etc.
6. Craft: cold drawn or cold rolled
7. Usage : Auto and motorcycle steel pipe
Gas spring steel tube
Boiler pipe
Low and middle pressure fluid transportation pipeline
Hydraulic system steel tube
Electric industry
8.Package : Bundle packing
Plain end or varnished as per buyer’s requestments
Wrapped in waterproof paper
Sackcloth with several steel strips
Pack in heavy tri-wall boxes.
9.Main feature : No oxidation layer on the outer and inner walls
No leakage under high pressure
No crake under flating and flattening
No distortion after cold bending
High precision high cleanness
Excellent brightness
10. Certificate : ISO9001-2008 quality
11. Manufacturer : direct selling
12. Annealed :+NBK,+GBK,+BKS
13.Trade terms : FOB/CFR/CIF/EXW/LC
gray with white cold drawn 20# high precision steel tube