安装、维护、保养方便，经久耐用。
Convenient to install, maintain and preserve, sturdy and durable.
构造简单，操控容易，故障少，保养方便。
Configuration is simple, controlling is easy, trouble is little, convenient to maintain.
本产品使用、维修、保养方便，是建筑行业的理想设备。
This product use, maintenance, maintenance convenience, is ideal for the construction industry equipment.
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