Dab tsi yog cov yam ntxwv ntawm cov txheej txheem ntawm aluminium melting rauv?

1. Qhov me me, lub cev nyhav, kev ua haujlwm siab thiab kev siv hluav taws xob tsawg;

2. Tsis tshua muaj ambient kub, tsis muaj pa luam yeeb thiab plua plav, thiab ua haujlwm zoo;

3. Cov txheej txheem ua haujlwm yog yooj yim, thiab kev ua haujlwm melting yog txhim khu kev qha;

4. Cov cua kub kub tsis sib xws, qhov hluav taws kub poob yog me me, thiab cov hlau muaj xws li sib xws;

5. Lub casting zoo yog zoo, lub melting kub yog ceev, lub cub tawg kub yog yooj yim los tswj, thiab cov efficiency ntau lawm;

6. Muaj ntau thiab yooj yim hloov ntau yam.