SGL炭集团公司是世界上生产大丝碳纤维最有名的公司之一。

SGL Carbon Group is one of the most famous companies producing large two carbon fibers.

youdao

SGL炭集团公司是世界上生产大丝碳纤维最有名的公司之一。

SGL Carbon Group is one of the most famous companies producing large two carbon fibers.

youdao