Mmefu ego na nyocha nke ego ịzụrụ valvụ China
Site na mmepe na-aga n'ihu nke ubi mmepụta ihe, valves dị ka ngwá ọrụ mmepụta ihe na-ejikarị eme ihe, ahịa ahịa ya na-eto eto. N'ọtụtụ ụlọ ọrụ, a na-eji valvụ eme ihe na mmanụ ala, kemịkalụ, gas eke, ike eletrik na ndị ọzọ ...
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