Amasu okukhetha ama-valve
Amasu okukhetha ama-valve 1, i-valve yokuhlola (i-aetv yendlela eyodwa): ngokuvamile isebenza kumidiya ehlanzekile, hhayi equkethe izinhlayiya eziqinile kanye ne-viscosity ye-medium. 2, kulandela i-valve enengcindezi ephansi ye-DN50mm (i-aetv yendlela eyodwa) :, kufanele isebenzise ibhotela...
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