crankshaft dust seal shantui roller parts part number:3970548 size:130-150-12mmmm weight:0.05kg ISO9001:2000 crankshaft dust seal shantui roller partsShantui SR18M road roller crankshaft oil seal,dust seal,crankshaft gasketPart number: 3970548, net weight: 0.13kgpart number:3900709, net weight: 0.05kg part number:3925529, 4982415, net weight: 0.15kg crankshaft dust seal shantui roller parts