Textile fabrics and felts, endless or fitted with linking devices, of a kind used in paper-making or similar machines (for example, for pulp or asbestos-cement)?
环状或装有联接装置的纺织物及毡呢，用于造纸机器或类似机器(例如，制浆机或制石棉水泥的机器)？
2
Early cylinders were completely filled with a porous filler material consisting of diatomaceous earth, charcoal, asbestos, and cement.
每个钢瓶都彻底填满了由硅藻土、木炭、石棉和水泥组成的多孔渗水材料。
3
With asbestoscement mortar pipe being used as inner liner, concrete is cast to form hollow slab.