Weifang 6113 diesel generator accessories (www.wfhccyj.com) body, cylinder block, cylinder head, crankshaft, connecting rod, cylinder, piston, piston ring, piston pin, connecting rod, cylinder cover four facilities, high pressure pump, pump when measuring with properly calibrated volume cylinder table as shown in Figure 1 of the parts and requirements of measurement. Namely: in the upper part of the cylinder from the cylinder on the plane 1Om cylinder wear degree, the domestic is generally used roundness and cylindricity two indicators to measure the