如果您需要解决登录及其他问题,请您与中国管道商务网联系,咨询热线:0532-83915188 ...
主要是为观察工况及维护方便而设置的装置,它具有结构简单,操作方便、快捷、密封性好的特点。 The valve is widely used in the pipe of material pneumatic transportation wind-pipe dust-moving system. it is the ideal device to maintain the valve and ...