Pneumatic V-type regulating ball valve

、外形及連接尺寸：">Seven, external and connecting dimensions:
Three hundred and forty-six

8, please fill in the "specification" or indicate the following:
、產(chǎn)品型號；">1, the product model;
、公稱通徑閥座直徑；">2, the nominal diameter of the seat diameter;
、公稱壓力；">3, nominal pressure;
、閥體和閥內(nèi)組件材料；">4, valve body and valve component materials;
、適用溫度；">5, suitable temperature;
、調(diào)節(jié)方式；">6, regulation;
、雙作用或單作用(單作用請注明氣開式或氣閉式) ；">7, double or single action (please indicate the single acting gas open or closed gas);