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The main production steel grades: 10,20,35,45 and other precision steel pipe chemical composition of carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, chromium Cr.
National standard of precision steel pipe; GB/T3639-2008, in addition there may also be applied GB/T8162-2008 structural precision steel pipe.
Precision steel pipe European standard: DIN2391
Precise steel tubes are widely used in automobiles, motorcycles, electric vehicles, petrochemicals, electric power, ships, aerospace, bearings, pneumatic components, and low-pressure boilers and other seamless steel tubes. They can also be applied to steel sleeves, bearings, hydraulics, machining, etc. field!
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Hose Clamp,Pipe Clamp,Hose Clips
Aojin Hose Clamp Factory , http://www.tjhoseclamp.com