bottom seal

基本解释

Pack with film, top seal, bottom seal and back seal by automatic bag making machine.
包装材料用卷膜，机器自动制袋为上封、下封加背面封口。
In accordance with customers' required specification it can be make into sheet, coil, bottom seal bag and envelope bag.
可根据客户的规格要求制成片材，卷材，平口袋，信封袋。
The bag making machine for high-speed cutting film, it can also be used for ordinary flat film of the bottom seal bag making machine, a compact, super-fast speed features, easy to use and reliable.
本制袋机用于薄膜片材的高速切断，也可用于普通平膜的底封制袋机，具有外形小巧，速度超快的特点，操作方便，使用可靠。

Achieving B Corp status would mean the company has a Good Housekeeping-like seal of approval testifying to its triple-bottom-line bona fides.
FORBES: Jessica Alba: Triple-Bottom-Line Entrepreneur