三种规格可匹配多种罐型
The three specifications can match several tank types.
7.5热收缩膜尺寸：16.5cm*13cm
7.5 heat shrinkable film size: 16.5cm*13cm
12.0热收缩膜尺寸：17cm*20cm
12 heat shrinkable film size: 17cm*20cm
14.5热收缩膜尺寸：17cm*24cm
14.5 heat shrinkable film size: 17cm*24cm
第一步：吹上盖
Step one: blow up the lid.
第二步：吹下盖
The second step: blow down the lid.
第三步：吹中间
The third step: blowing the middle