Zhejiang Dingxin Steel Tube Manufacturing Co. Ltd

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1. High Precision Seamless Steel Pipe For Auto Parts And Motorcycle Parts, ASTM A519, SAE1026, 25Mn, NB

Advantages: Nice surface and precision diameter. Nice mechanical property. No deformation after cold bending, no crack after flaring and flattening.
Main Standards: GB/T3639, ASTM A519, DIN2391, EN10305-1, JIS.
Materials: 10, 20#, 45#(1045), ...

2. Precision Seamless Steel Tube For Hydraulic Jack, AISI/SAE 1045

Advantages: Precision inside diameter. Nice mechanical property are able to withstand high pressure impacting. Nice straightness, minimum surface roughness and small wall thickness deviation.
Standards: DIN 2391, EN 10305-1, ASTM A519.
Materials: ...

3. Ready To Hone Seamless Steel Tube For Hydraulic Cylinder And Pneumatic Cylinder, DIN2391 / EN10305,

Advantage: High precision, nice straightness and small allowance for honing. Minimum surface roughness. Inner roughness: 0.8μm
Main standards: DIN2391, EN10305-1, ASTM A 519.
Main materials: ST45, ST52, 1020, 1026, E255, E355
Application: ...

4. Precision Seamless Steel Pipe For Cylinder Liner Sleeve, ASTM A519 SAE/AISI 1020 Bao Steel

Advantages: Thin-walled, high precision, small ovality, small allowance for processing.
Main standard: DIN2391, ASTM A519, EN10305-1
Main materials: ST45, E255, SAE1020(Bao steel).
Delivery condition: BK.
Outer diameter: 50 to 116mm,
Wall ...

5. Alloy Steel Seamless Pipe For Geological Oil Drill Pipe, AISI / SAE 4130 4140 30CrMo

Advantages: Produced for drilling, with uniform wall-thickness, wall thickness deviation +/-5%. High dimensional accuracy and nice straightness, straightness <= 0.4/1000mm. Reliable performance (including hardness) and nice torsion-resistant. ...