Optimized mechanical properties enabling easy bending, flaring, flattening and other processing
Good surface roughness suitable for electrophoresis, coating, galvanization and chroming processing
High precision
Excellent microstructure
O.D 16-245mm, WT 1-32mm
GB/T3639, Cold-drawn or cold-rolled precision seamless steel
DIN2391, Seamless precision steel tubes
DIN2393, Welded Precision Steel Tubes
EN10305-1, Steel tubes for precision applications Part 1: Seamless cold drawn tubes
EN10305-2, Cold drawn steel tubes for precision applications Part 2: Welded cold drawn tubes
ASTM A519, Seamless Carbon and Alloy Steel Mechanical Tubing
ASTM A513, Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
JIS G3445, Carbon Steel Pipe For Mechanical Purpose
JIS G4051, Carbon Steels for Machine Structural Use
According to customer’s specific requirements
Customize your tube10#, 20#, 35#, 45#, 55#, Q355B, 25Mn, 16MnCr5, 20MnCr5, 30CrMo, 35CrMo, 42CrMo, 20Cr, 40Cr, 20CrNiMo ; ST37, ST45, ST52, 34CrMo4, 42CrMo4 ; E235, E255, E355 ; 1010, 1020, 1026, 1035, 1045, 1050, 4130, 4140, 8620 ; STKM 11A, STKM 12B, STKM 13C, STKM 14B ; S10C, S20C, S35C, S45C and etc.
Cold drawn/hard (+C) (BK)
Cold drawn/soft (+LC) (BKW)
Cold drawn and stress relieved (+SR) (BKS)
Annealed (+A) (GBK)
Normalized (+N) (NBK)
Quenched and Tempered (QT)
Cut to length
Chamfering (outside diameter: 33-89mm)
Ball Cage
Shock Absorber
Gear Shaft
Cylinder Sleeve
Tie Rod
Bushing
Camshaft
Tensioner Pulley
Drag Link
Stabilizer Link
Other Linkage
V Torque Rod
Drag Link
I Torque Rod
Stabilizer Link
Established and put into production
Certified by ISO9001 quality management system
Served SINOTRUK, DONGFENG TRUCKS, SAIC, SAIC-GM as Tire2/3/4 supplier
Started large-scale supply of tubes for Automobile (OEM, OES & Aftermarket) at mass production
Certified by TS16949 quality management system
Served Volkswagen, SAIC-VM as Tier 2/3 supplier
Served SGMW as qualified Tier 2/3 supplier
Served Great Wall, Nissan as qualified Tier 3 supplier
Awarded as a typical technological enterprise in Zhejiang province
Served Geely as qualified Tier 3 supplier
Certified by IATF16949 quality management system;
Awarded as National High-tech Enterprise