DR's new, remarkable, proprietary and patent pending K3?Technology Coating is the first coating that makes no apologies and no excuses for not delivering sound equal to uncoated strings.
DR新款的，不同寻常的专利产品K3，镀层技术首次发挥到毫无缺憾，与非镀层琴弦声音效果一样出色。
DR's new, remarkable, proprietary and patent pending K3?Technology Coating is the first coating that makes no apologies and no excuses for not delivering sound equal to uncoated strings.
DR新款的，不同寻常的专利产品K3，镀层技术首次发挥到毫无缺憾，与非镀层琴弦声音效果一样出色。
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