Dial Indicators, Micrometers, Calipers manufacturer / supplier in China, offering 50-160mm Dial Bore Gauge Compact Design for Cylinder Wear Check and Small Cylinder Bore Inspection, Precision Dial Bore Gauge 50-160mm Measuring Range with Stainless Steel Contact Points for Engine Cylinder Measurement, High-Precision Dial Bore Gauge 50-160mm Range Master Grade for Metrology Laboratory Use and so on.