求翻译：中国张家港市沙洲船用锅炉经营有限公司是中国江苏省张家港市海陆集团的下属销售公司，专营船用锅炉和船用锅炉配件的销售及配套维修。主要经营范围包括：是什么意思？

  China Zhangjiagang Shazhou marine boiler Management Co., Ltd. Zhangjiagang City, Jiangsu Province, China is the land and sea, an affiliate marketing company specializing in marine boilers and boiler accessories and marine repair facilities. The main business scope includes:

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  the Chinese Zhangjiagang sandbar ship is the Chinese Jiangsu Province Zhangjiagang sea land group's subordinate sells the company with the boiler management limited company, monopolizes the ship uses the boiler fitting with the boiler and the ship the sale and the necessary service.The main mana

Sha Chau, Zhangjiagang China marine boiler operation company is a group of subordinates, sea and land, Zhangjiagang, Jiangsu, China sales company, specializes in marine boiler and boiler fittings for ship sales and supporting maintenance. Main business scope includes:

Sha Chau, Zhangjiagang China marine boiler operation company is a group of subordinates, sea and land, Zhangjiagang, Jiangsu, China sales company, specializes in marine boiler and boiler fittings for ship sales and supporting maintenance. Main business scope includes: