Ho na le mefuta e mengata ea li-valve, 'me e' ngoe le e 'ngoe e na le melemo le melemo ea eona. Mona ke melemo le mefokolo e mehlano e meholo, ho kenyelletsa li-valve tsa heke, li-valve tsa serurubele, li-valve tsa bolo, li-valve tsa globe le li-plug valves. Ke tšepa ho u thusa. Cock valve: e bua ka valve ea rotary e nang le ho tsubella ...
Bala haholoanyane