Closure is a unique hybrid of a plastisol-lined metal disk and a plastic band. 封閉是一種獨特的混合了塑內襯金屬磁碟和一個塑料帶。
Alcoa Closure Systems International is a major provider of closure systems, packaging equipment and technical services. 美鋁瓶蓋系統國際公司是一家主要供應商的封閉系統,包裝設備和技術服務。