Shaanxi Rongle Petroleum Machinery Co.,Ltd is one of the best China piston rod manufacturers and suppliers, and also a professional company and factory, welcome to import quality piston rod products from us. Piston rod is known as piston extesion rod, is the main parts that connect drilling mud pump power end and fluid end.Our company can offer F series and 3NB series drilling pump for all kinds of piston rod(metric , inch). it is made by 42CrMo. Piston rod is connected to the power end of the mud pump through clamp, for power transmission purposes. The small end is installed with piston which is in reciprocating rectilinear movement in the cylinder to generate pressure.Material for the piston rod: 42CrMo.The blank is forged pieces, with thermal refining Hb285-321.