40 workers, 15000 ㎡ workshop, 15 years experience, ISO9001 certificated, this is how we keep good quality and competitive prices for global valued customers.

Our main products cover honed tube ,pre-honed tube,cold drawn tube,piston rod and chrome rod.

Honed Tube is well known as hydraulic cylinder tube in industries. Honed Tubes, Skived & Roller Burnished Tubes are the most important material of manufacturing hydraulic cylinders.As one of the leading hydraulic cylinder honing tubes suppliers and manufacturers, dooharvest has been supplying and ex

honed tubes, honing pipe, hydraulic cylinder tubes, pneumatic cylinder tubes, honed pipe, honing tube, seamless honed steel tube, precision tubes, cold drawn honed tubes, skived tubes, skived and roller burnished tubes, skived pipes, SRB tube, SRB pipe, hydraulic SRB tube

MaterialC%Mn%Si%S%P%V%Cr%Ck450.42-0.500.50-0.800.17-0.37≤0.035≤0.035≤0.25ST52≤0.22≤1.6≤0.55≤0.04≤0.040.02-0.1520MnV60.17-0.241.30-1.700.10-0.50≤0.035≤0.0350.10-0.20≤0.3042CrMo40.38-0.450.50-0.800.17-0.37≤0.035≤0.0350.07-0.120.90-1.2040Cr0.37-0.450.50-0.800.17-0.37≤0.035≤0.0350.80-1.10

Honed Tube is well known as hydraulic cylinder tube in industries. Honed Tubes, Skived & Roller Burnished Tubes are the most important material of manufacturing hydraulic cylinders.As one of the leading hydraulic cylinder honing tubes suppliers and manufacturers, dooharvest has been supplying and ex