... protection 2,fasten leakage protector 3,low speed level 4 motor 4, mixed function Applicable scope: thebody shop, large ... 3,whole series of low speed level 4 motor, configuration significantly boost durability.4, large capacity crankcase add ventilation, effective ... water and fine grinding crankshafts, one-piece aluminum alloy connecting rod.6, comprehensively USES brass or stainless steel parts, ...