Gilbreth goes green Shrink sleeves and tamper-evidence bands are made from corn-based polylactic acid (PLA) film, providing an alternative to oil-based films.

• 吉尔布雷斯不用绿色 收缩套筒和篡改证据带是由玉米制成的聚乳酸（ PLA ）薄膜，提供了一种替代石油为基础的电影。