tuning pin造句

例句与造句

1. Our key products including tuning pins , hinges , damper rods , casters , pedals and pressure bars while we also produce kinds of adjustable piano benches , white / black keys and logos
   专业生产全套钢琴五金配件，主要产品有：弦轴、铰链、抬档、脚轮、踏板、压线条等，还生产不同规格的琴凳（升降） 、黑白琴键和商标。
2. It's difficult to find tuning pin in a sentence. 用tuning pin造句挺难的