Hamwe nuburambe bwimyaka mumasoko Yuzuza valve kumatara ya butane , Jincheng Aerosol Valve irashobora gutanga umurongo mugari wa Refill valve kumatara ya butane . Kuzuza valve kumatara ya butane irashobora guhura nibisabwa byinshi, niba ubikeneye, nyamuneka tubone serivise kumurongo mugihe cya Refill valve kuri butane amatara .Usibye urutonde rwibicuruzwa hepfo, urashobora kandi kwihitiramo umwihariko wawe wuzuza valve ya lisansi ya butane ukurikije ibyo ukeneye byihariye.