Umhlahlandlela wabakhiqizi be-Tianjin Valve: Unganquma kanjani ukuthi i-valve idinga ukushintshwa?
Njengethuluzi elibalulekile lokulawula uketshezi, i-valve ingaba nezinkinga ezihlukahlukene ngemva kokusetshenziswa isikhathi esithile, okuhlanganisa ukuvuza kwamanzi, ukuvuza, ukuvaleka, njll. Lesi sihloko sizokwethula ezinye izindlela zokunquma ukuthi i-valve idinga ukushintshwa, gxuma. ...
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