Vagadziri veTianjin Valve Guide: Maitiro ekuona kana valve ichida kutsiviwa?
Sechinhu chakakosha chekugadzirisa mvura, valve inogona kuva nezvinetso zvakasiyana-siyana mushure mekushandiswa kwenguva yakati, kusanganisira kubuda kwemvura, kubuda, kuvhara, nezvimwewo. Ichi chinyorwa chichasuma dzimwe nzira dzekuti iwe uone kana valve inoda kuchinjwa, hop. ...
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