... be controlledDimensions and tolerances per ANSI Y14.5-82All process is in accordance with ISO9001:2000Other Parts for Gate ValveGateHandleStemScrew ... Turning, Boring, Slating, Grinding,, NC/CNC Machining etc.4) Tolerance is controlled by CMM Machine.5) OEM Service6) Special design ... is available.7) ISO9001:20008) Standard: ASTM, BF,BS, JIS, UNI ...