环形穿孔空气扩散器冷空气穿过大峡谷。
Circular perforated air diffuser It had spread across the high valley .
环形穿孔空气扩散器计算机化锈花穿孔机
Circular perforated air diffuser computerized embroidery punching machine
环形穿孔空气扩散器
Circular perforated air diffuser