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Diaphragm Pneumatic Gate Valve 1. Size:1 13/16"- 7 1/16" 2. Temperature:K. L .P. R .S. T. U. V 3. Material:AA. BB. CC. DD. EE. FF. 4. PSL:PSL1-PSL4 5.PR1--PR2 5. Diaphragm Pneumatic Actuator Operated