Unverified85% confidenceDecision RuleTime unknown
选购景泰蓝(掐丝珐琅)看丝工密度：优质品每平方厘米铜丝布局细密均匀，掐丝线条无断裂、无堆叠，砂眼(釉料气孔)数量越少品质越高，出口级景泰蓝砂眼需人工反复补釉3-5遍
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