Search “网堵软件排行榜✔️️官方网址：kkf1.net✔️网堵软件排行榜✔️️官方网址：kkf1.net✔️网堵软件排行榜✔️️官方网址：kkf1.net✔️”

A "time and materials" contract outlines a set price for labor and materials based on hourly rates or price per quantity.