公司设计及生产的主要产品有：七氟丙烷气体自动灭火系统。

Design and production of the company's main products are: heptafluoropropane gas automatic fire extinguishing system.

youdao

公司设计及生产的主要产品有：七氟丙烷气体自动灭火系统。

Design and production of the company's main products are: heptafluoropropane gas automatic fire extinguishing system.

youdao