Specialize in Calibration Services, Gas Detectors, Oilfield Equipments, Drilling Equipments, Oilfield Valves and Instruments, Surveying Instruments, Testing and Measuring Instruments. Products Include Vernier Caliper, Micrometer, Height/Thickness/Feeler Gauge, Torque Wrench/Device,Pneumatic and Hydraulic Pressure Gauge, Temperature Controller/Indicator/Recorder, Potable Gas Detector etc.