求翻译：主要生产和经营高档汽车的中央门锁、侧门锁、尾箱锁等，是三井金属株式会社在中国唯一独资的“世界500强”企业，现有员工600人左右。是什么意思？

Production and management of high-end car key central locking, side door, rear lock, Mitsui Metal Co., Ltd. in China is the sole proprietorship of the "Fortune 500" companies and currently employs 600 people.

正在翻译，请等待...

The main production and the management upscale automobile central door lock, the side door lock, the tail box locks and so on, is Mitsubishi Metal Joint-stock company in the Chinese only sole ownership “world 500” the enterprise, about existing staff 600 people.

Mainly the production and marketing of premium car central door lock, side door lock, boot lock, is the only wholly-owned Mitsui metal Corporation in China, "Fortune 500" companies and currently employs about 600 people.

Production and management of high-end car key central locking, side door, rear lock, Mitsui Metal Co., Ltd. in China is the sole proprietorship of the "Fortune 500" companies and currently employs 600 people.