Search “구글첫페이지작업대행 {{텔page13}} ≤1stpage·co，kr≥ 일반키워드작업홍보 성인키워드작업광고 5 유흥키워드작업등록 구글키워드작업업체 1 키워드작업상위 웹문서작업상단 13914 1페이지작업노출”

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