Uses the network service from the customer the custom looks, has 95.20% net people frequently use search engine, SEM has become the enterprise website promotion the main way.

从顾客使用网络服务的习惯看，有95.20%的网民经常使用搜索引擎，搜索引擎营销已成为企业网站推广的主要途径。

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Since buying a minority interest in SEM in 2005, Cat has been working to upgrade the quality and durability of SEM machines, while sharing its prowess in manufacturing, safety and dealer service.

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