... highly effective equipment with CE,newly designed and produced according to market requirements. ModelS-100Engine power (hp)5.0-5.5Work Dia. ... power trowel:1, Simple operating procedure and long service life.2, High working effectiveness and speed.3, Low noise.4, Safe,credibility and steady performance.5 ... change the defective parts(but the wearing parts)for free in the condtion that the users comply ...