On-the-spot inspections revealed that small-scale electroplating workshops in Taiwan often lack environmental isolation equipment. Sometimes, due to insufficient quantities, saxophones and different musical instruments or even other metallic products are cleaned in the same acid bath after electroplating, which can result in impurities being left on them.
實地考察後，機械所發現台灣小型的電鍍廠並沒有環境隔離設施，有時候又因為數量不夠，在以強酸洗淨電鍍存留雜質的過程中，會將不同樂器、甚至其他五金類產品一併處理，可能造成不同雜質的附著。