不用维护的

Constructed of 304 stainless steel with 316 stainless hardware, the LSC Rescue Seat is virtually maintenance free. 制造由304不锈钢钢索加上316钢索硬件,LSC营救位子建造实际上免维修。

The inserting pin with fixed structure which does not need oiling is pollution free and maintenance free. 插针采用固定构造，完全不用加油，无污染，无维护成本。

It is a maintenance free analyzer as its newest design of the precision meter pump. 使用隔膜式精密计量泵---计量精确、免维护。

The Rescue Basket is constructed almost entirely of welded type 304 stainless steel, making it virtually maintenance free. 这个营救篮由304类型焊接不锈钢建造,使它免维修。

HYDAC back-flush filters are designed for continuous and maintenance free filtration in all sectors of industry for water filtration. HYDAC后台刷新过滤器是设计用于连续和维护水过滤所有的行业免费过滤。

It features undecomposable, deformation free, fade resistant, insect damage resistant, god fireproof performance, crack resistant, and maintenance free etc. 从事新型建筑材料、室内外装饰材料生产销售。