1SN,2SN,4SH,4SP Medium:Oil, Seawater,mud Fitting:Male,Female,Flange,Thread Type Material:316L,321,Steel ISO9001:2008 Hydraulic Hose Assembly 1SN,2SN,4SH,4SPMedium:Oil, Seawater,mudFitting:Male,Female,Flange,Thread TypeMaterial:316L,321,SteelISO9001:2008 Here,we'd like to make a brief introduce of our company, thanks for your time, and it will be worthy.1.The basic information of JRThe head office ...