亚洲丁香婷婷久久一区二区_少妇极品熟妇人妻_欧美成人影院在线观看_国产精品十八禁在线观看-98_浮力_激情高清电影资源在线观看_激情搞笑片-久草免费在线视频观看,2020在线免费

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.