求翻译：张家港保税科技股份有限公司经过多年的发展，现已发展成为拥有四家子公司的集团型企业，行业涵盖化工仓储、贸易、房地产及物流运输业，其中最大的子公司张家港保税区长江国际港务有限公司拥有 50 多万立方的库容 ( 含在建 ) ，拥有 20,000 吨级、 50,000 吨级、 5000 吨级散装液体石化产品专用码头各 1 座， 500 吨级内河十字港疏运码头 2 座。是什么意思？

Zhangjiagang Bonded Technology Co., Ltd. After years of development, has now developed into a group enterprise with four subsidiaries, the industry covers chemical storage, trade, real estate and logistics and transport, which is the largest subsidiary Zhangjiagang Free Trade Zone Yangtze River Inte

Zhangjiagang bonded Technology Co. , Ltd. , as a result of many years of development, has now developed into a 4 subsidiaries of the group-based business, and industry covers chemical storage, trading, real estate and logistics industry, the largest subsidiary Zhangjiagang Bonded Area Yangtze River

Zhangjiagang Bonded Science and technology Limited liability company passes through many year development, already developed into has four subsidiary company collective form enterprises, the profession covering chemical industry warehousing, the trade, the%2

Zhangjiagang bonded technology company limited after years of development, now has development became has four home subsidiaries of group type Enterprise, industry covers chemical warehousing, and trade, and real estate and the logistics transport, which maximum of subsidiaries Zhangjiagang free tra