The shipping industry benefited from the decline in oil prices , and most companies achieved profitability . The dry bulk market opened higher and lower , and continued to bottom; the port industry revenue fell year-on-year , ranking the last in the sub-sectors of the transportation sector. In the first quarter of 2015 , the shipping industry remained slightly better than the financial indicators. Port industry continued the downturn trend in 2014, the overall financial indicators in the port industry is relatively bleak.     Comparative analysis of shipping companies : fuel prices generally benefit , oil transportation continues to pick up. Comparative analysis of port companies : poor income performance and decline in profitability. Cooling System,Cooling System Air Cooled ,Water Cooling System,Oil Cooling System Dongguan Jiaxing Precision Machinery Co., Ltd. , https://www.jiaxingmachinery.com