Impeller with against pine device, Mechanical seal face material USES silicon carbide - silicon carbide, durable, safe and reliable.
叶轮具有防松装置，机械密封端面材质采用碳化硅-碳化硅，经久耐用、安全可靠。
For being convenient to change the outside material face layer, the wrapping outside material can be provided with a zipper or a thread gluing device.
为方便外材面层的更换，所述包裹的外材上可以带拉链或粘扣装置。
For being convenient to change the outside material face layer, the wrapping outside material can be provided with a zipper or a thread gluing device.
为方便外材面层的更换，所述包裹的外材上可以带拉链或粘扣装置。
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