About ISHIGURO TAKAHIRO
About 出光ユニテック 商品開発セ
About packaging container
About technology development
About application development
About property
About exfoliation
About polypropylene
About イージーピール性
About packaging technology
About development trend
About opening (seal)
About tightness
About Packaging materials
About 易開封
About 密封パッケージ
About マジック
About トップ
About 開発動向