ram piston valve

Tank bottom valve, Ram type, Piston type, with Cylinder/ Handwheel on Emergency,

with Accessory/ Explosion type, Stainless steel, to SK,
http://blog.cyworld.com/kt2004
http://cyworld.com/jet2004
sales@steeltiger.co.kr, steel :(쇠)금, tiger :(호랑이)호