1.gear pump is high quality,competetive price 2.simple structure,high efficiency,low noise,high reliablity 3.high ... million RMB.The main products are piston ,hydraulic gear pump,and oil pump.The yearly capicity are separately five millon pcs,six ... gear pump is honoured as “Shandong famous-brand products”.The products are widely used on the autombile,heavy-duty truck,electric generating ...