Cov kev cai tshwj xeeb rau blackening ntawm yoov tshaj cum hluav taws xob cua sov raj:
Feb 14, 2023
Tso lus
.1. Teem kub: 1 kub cheeb tsam 1030 degree 2 kub cheeb tsam 1080 degree
2. Mesh siv ceev: 11Hz
3. Gas siab: 2.1Pa
4. Cua siab: 30 Pa
