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<p>供应商说可以用718H替代P20做模架性能好但价格贵15%。想问问用过的师傅718H到底值不值这个差价？寿命差多少？</p>
<p>718H好但你要不做镜面P20足够。省下15%买好模芯不香吗。</p>