... for YK-100, YK-150, Type D and Type F Gauge.-Bourdon tube and movements indicator gives highly accurate readings of mud ... Produced(Previous Year) Mud Pump Pressure Gauge, Tong Torque System, Gauge, Weight Indicator Mud Pump Pressure Gauge: 6,000 Units Per YearTong ... Per YearWeight Indicator: 300 Units Per Year Mud Pump Pressure Gauge: 5,630 UnitsTong Torque System: 229 UnitsGauge: 124 UnitsWeight ...