As jade is of hard texture, carving is not done with a steel graver, but with emery by way of grinding.
由于玉质地很硬，不能用钢质雕刻刀雕刻，用磨光的金刚砂来雕刻。
Stainless steel sheet with polished surface processed with fiber emery wheel.
用纤维砂轮加工的不锈钢板材的表面。
Stainless steel sheet with polished surface processed with fiber emery wheel.
用纤维砂轮加工的不锈钢板材的表面。
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