Ngwa na uru nke pneumatic cut-off valve na mmepụta mmepụta ihe - onye aka nri nke ụlọ ọrụ mmepụta ihe
A na-eji valvụ na-emechi pneumatic, dị ka akụrụngwa na-achịkwa mmiri dị mkpa, n'ọtụtụ ebe na mmepụta ụlọ ọrụ. A na-ejikarị ya na mmanụ ala, ụlọ ọrụ kemịkalụ, metallurgy, ihe ụlọ, ọkụ eletrik na mpaghara mmepụta ihe ndị ọzọ. N'akwụkwọ a, ngwa ...
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