欧美日韩国产精品免费观看国产久久亚洲不卡,，日韩无码国产AV日本在线一区二区,，免费毛片二区三区久久久五月综合激情影院

KT box is made of kraft paper and aluminum foil paper composite in ps board core, board core up to high density, low temperature resistance, strong anti-fall ability, not easy to deformation.                                                                    

Aluminum film inside: reflective heat, no water absorption, excellent heat insulation performance.                                  

PS insulation layer: low thermal conductivity, delay the internal and external temperature difference.                                  

Kraft paper: strong material that is not easily punctured and can be printed.