150 pieces of single small orifice air valves with oblong holes to suit DN40/50/60/65 flanges and a batch of DN150 double orifice air valves with ABS float balls are ready for delivery.
150 pieces of single small orifice air valves with oblong holes to suit DN40/50/60/65 flanges and a batch of DN150 double orifice air valves with ABS float balls are ready for delivery.