中交天航港湾建设工程有限公司的英文怎么说？

中国交通天津航道局港湾建设工程有限公司 的简称吧？！！！
China Traffic Tianjin Dredging Harbour Construction Engineering Co.,Ltd
简写
CTTD Harbour Construction Engineering Co.,Ltd

China hands over to the boat harbour construction engineering corporation, Ltd. of day

Zhong Jiao Tian Hang Port Construction Project Company Limited