Closure is a unique hybrid of a plastisol-lined metal disk and a plastic band. 封闭是一种独特的混合了塑内衬金属磁盘和一个塑料带。
Alcoa Closure Systems International is a major provider of closure systems, packaging equipment and technical services. 美铝瓶盖系统国际公司是一家主要供应商的封闭系统，包装设备和技术服务。
