... hose, metal hoses, nylon products, polyurethane, resin hose series, fabric core conveyer, refractory fire-retarded heat-proof conveyor etc. for ... Reinforced HoseFlexible Metal Hose SeriesCompensator Series/Pressure Flange/Fast Connector Pipe Fitting SeriesHSG series Hydraulic Pressure JARHigh/middle/low ... the API, CQC, ISO 9001:2000, ISO9001:2008, GB/T 19001-2008 certificate, GB/T3683.1-2006 “ZHI YUAN” ...