Double Win International Group Limited Supply Genuine and OEM equipment and spare parts of high, medium and low speed marine diesel engine, turbocharger, compressor, oil separator, oil and water pump, instrument and thermometers
at home and abroad. 

Main brands: MAN, YANMAR, DAIHATSU, WARTSILA, DEUTZ, SULZER, CUMMINS etc. 

WARTSILA :L20 R32 etc

Main products:nozzle,plunger and barrel,delivery valve,cylinder head,cylinder liner, 
piston,piston pin,piston ring,connection rod,connection rod bolt, 
inlet valve,exhaust valve,valve seat,rocker arm,bearing,starting valve,safety valve, 
indicator valve,injection block ,cylinder head gasket,air filter L.O filter,sealing rings, thermocouple, pressure gauge, thermometers ,balance shaft. etc.