-- Established in Apr. 10th, 2001 & certified by ISO9001-2008; -- Being one of the largest professional manufacturer and supplier of Gauges, Taps & Dies, Cemented Carbide & Measuring Tools in the west of China; 1, Gauges: Common Thread Gauges, Pipe Thread Gauges Sealed without Thread, Butress Thread Gauges, Pipe Thread Gauges Sealed with Thread, Petroleum Piping Thread Gauges… 2, Thread Tools: 1), Taps: Small Dia. Shank Machine Taps, Short-type Machine Taps, Short-type Hand Taps, American Standard Machine Taps; 2), Dies: Dies, Special Dies for Sewing Machine, Metric System Taper Thread Dies… 3, Cemented Carbide: 1), Cutting Inserts: Brazed Tips, Mechanically Clamped Inserts, Indexable Inserts; 2), Finished Product Tools: Coal Drill, Mining Bits, Buttons with flat bottom, Cap-form button; 3), Geological Mining Tools: Mining Bits, Drilling Bits, Coal-cutting Bits; 4), Wear Parts: Drawing Dies, Rolls, Punching and Impacting Dies; 5), Section Bars: Sintered rods with standard dimension, Rods with central hole, Gun Drills… 4, Measuring Tools: 1), Calipers: Vernier Calipers, Dial Calipers, Electronic Digital Calipers; 2), Dial Indicators: Large Range Dial Indicators, Special Gauges for Rubber; 3), Micrometers: Outside Micrometers, Edge Type Micrometers, Point Micrometers, Inside Micrometers, Digital Outside Micrometers; 4), Gauge Blocks: Metric System Rectangular Gauge Block Sets, Inch System Rectangular Gauge Block Sets, Special Gauge Blocks, Angle Gauges Blocks…