Changyou Valve Technology Ocean: Kupanga Bwino ndi Kugwiritsa Ntchito Mavavu Agulugufe a China Telescopic Flange
Changyou Valve Technology Ocean: Innovation and Application of China's Telescopic Flange Butterfly Valves Pakupanga mafakitale amakono, udindo wa ma valve sungathe kunyalanyazidwa. Mavavu ndi zida zomwe zimayendetsa kayendedwe ka madzi (zamadzimadzi, mpweya, ufa, etc.) ...
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