Zhangjiagang Shengdingyuan Pipe-making Co.,ltd is a modern enterprise manufacturing DIN2391/C-94/EN10305-4 high precision cold drawn carbon seamless steel tube,hydraulic steel tubing,ISO8535-1 high pressure fuel injecting tube for the engine,galvanized precision steel tube,precision seamless steel tube for ship-buliding,and rectangular steel tubing for textile machine.Size range:OD4-76mm,WT:0.5-6mm. Our company had been approved by TS16949 since year 2009.Now we are applying GL, CCS certificate...
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