Purchase Qty. Reference FOB Price
10-998 Pieces US$20.00
999+ Pieces US$1.00
Product Description
Introduce The long cylinder piston rod is made of 45 steel, and its processing route is: forging (rolling) -cutting - tempering - straightening - machining - surface quenching, tempering - straightening - rod head welding - machining - grinding - stress relief annealing - polishing - hard chrome ...