1. Gas ajiya na musamman majalisar, guda kwalba / biyu kwalba 50 * 50 * 200 ko 90 * 50 * 200 mm, dace da sanya daban-daban dakin gwaje-gwaje gas karfe kwalba, cikakken kayan aiki ciki har da leakage gas ƙararrawa, leakage bawul da sauran tsaro na'urori

2. fashewa-proof majalisar, cika kasa tsaro ka'idoji, Open wuta 15, 30, 60 minti fashewa-proof bayanai