背板无鼓包、分层现象不允许；无明显高点、凹坑现象；无铝框盖不住的缺口、

背板无鼓包、分层现象不允许；无明显高点、凹坑现象；无铝框盖不住的缺口、移位等缺陷

ผลลัพธ์ (อังกฤษ) 1:

Backplane without bulging, stratification is not allowed; no obvious peaks, pits without aluminum frame won't cover gaps, defects such as shift

ผลลัพธ์ (อังกฤษ) 2:

Backplane without drum kits, stratification is not allowed; no obvious high point, pits phenomenon; no aluminum frame cover any shortfall, displacement and other defects

ผลลัพธ์ (อังกฤษ) 3:

Back to the back of the bag, the phenomenon of stratification is not allowed; no obvious high point, the phenomenon of the pit; no aluminum frame cover the gap, shift and other defects