Processing method for lining to main body of valve body of sluice valve having valve seat of elastic material
JPS6130401A
Hub
JPS59147169A
Sluice valve
JPS59117964A
Seal structure of gate valve
JPS59113383A
Quick suction air valve with exhaust quantity control valve
JPS58149488A
Gate valve capable of being repaired without stopping water flow
JPS57181755A
Method for lining dissimilar metal by casting on inside surface of hollow object made of cast iron
JPS56156573A
Air valve
JPS5530568A
Air valve protected from damage due to freezing
JPS5463430A
Pressure reducing valve
JPS5364825A
Closing valve for preventing secondary calamity
JPS5364824A
Closing valve for preventing secondary calamity
JPS5251793A
Underground hydrant equipped with slidable tubular float
JPS5250030A
Improved type air valve characterized by mounting exhaust ports for large and small amount of air and suction port to lower side and lower end of slidinggfree pipe float to make exhaust structure comp
