Trunnion Mounted Ball Valves: Yang'anani Ubwino Wopangidwa ndi trunnion wokwera mpira valve ndi valavu yopangidwa kuti iziyendetsa kayendedwe ka madzi monga madzi, gasi ndi mafuta.Amagwiritsidwa ntchito kwambiri mumafuta ndi gasi, makampani opanga mankhwala, kupanga magetsi ndi mafakitale ena.M'nkhaniyi, tiwona zomwe trunnion ...
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