Kuyembekeza kwa msika wa valve wapadziko lonse ndi kufufuza mozama kwa osewera akuluakulu, monga Swagelok Company (USA), MRC Global Inc. (USA), Astech Valve Co. Ltd. (Taiwan), Cameron International Corporation (USA), ndi zina zotero.
Kusanthula kwampikisano komwe kumachitika mu lipoti la valve ya mpira kumakupatsani mwayi wodziwa zomwe osewera akulu pamsika, monga kukhazikitsidwa kwatsopano kwazinthu, kukulitsa, mapangano, mabizinesi ogwirizana, mgwirizano, ndi kupeza. Njira yayikulu yofufuzira yomwe imagwiritsidwa ntchito ndi ...
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