各位前辈，小弟刚入此行，**头雾水，无意中发现这个论坛，诚心请教各位大虾。
今天收到**个询盘：

Dear Sirs,

You make perforating rules.

Do you make alse MICROperforating rules?

Microprf rule 23,8x070 30 TPI double bevel , lenght 500 mm

Microprf rule 23,7x070 30 TPI double bevel , lenght 500 mm

可否帮我翻译**下？什么是Micro perforating rule?, 23.7*070 30 TPI是什么意思哦？
谢谢各位！