色鬼7777久久,国产久免费热视频在线观看,性欧美欧美巨大69,AV狠狠色丁香婷婷综合久久 91亚色视频在线观看_人妻无码第一区二区三区_久草国产精品视频_欧美黑人又粗又大XXXX视频

Technical Support

Common physical properties of flexible packaging material
  Barrier properties strength function
Water and gas oxygen general Stiff Hypothermia high temperature Transparent forming Sealing print Paul Shannon
paper   × × × × × ×◎ ×
metal AL × × × ×
film OPP × × US ×
CPP × × ×
PET × ×
ONY × ×
CNY × ×
LDPE × ×△ × ×
HDPE × △〇 ×
PVDC × ×〇 W ×
PVC × W
PVA × ×
EVOH × ×
OPS × ×
PVDC KOP ×
Coating KPET ×

◎:excellent 〇:good△:general×:badUS:Ultrasonic SutureW:High Frequency Sealing