Production of the pre-cast stair treads and reconstituted stone surfacing to all stairs and landings in the newly built staircase.
预制楼梯板的生产及在新建建筑内对所有楼梯及其平台是用人工大理石进行贴面的。
Many devices are used to shape and dress stone, from handheld tools to circular saws, surfacing machines, and lathes.
很多装置可以用来对石头进行塑型及调整，从手携式的工具到圆锯，表面处理机器，以及车床。
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