... quality 2,Reasonable price' 3, OEM are welcomed Product:Forged Piston Rod Material:S42Cr1Usage:boat,vessel, shipCertificate:CCS, ABS, LR, KR,NK ... , such as forged shaft, impeller, ring, flange, rotor, roll, forged cylinder, gear, drill collar, drill pipe, forged mould etc...Welcome cutomers ... all around the world to visit our factory, hope for cooperation in not long future.