Mavavu nthawi zambiri amalumikizidwa ndi mapaipi m'njira zosiyanasiyana monga ulusi, ma flanges, kuwotcherera, ma clamp, ndi ma ferrules.Kotero, posankha ntchito, momwe mungasankhire?Kodi njira zolumikizirana ndi mavavu ndi mapaipi ndi ziti?1. Kulumikizana kwa ulusi: Kulumikizana kwa ulusi ndi mawonekedwe mu ...
Werengani zambiri