... lifetime maintenance.we can do OEM /ODM orderSpecifications: gasoline concrete cutter ModelGQR400AEngine Engine ModelHonda GX160 Type4-stroke,1cylinder,Forced Air ... invest a lot of time and effort in developing the concrete vibrator, plate compactor, power trowel, vibratory roller, etc. We ... We can do OEM orders. After sale service:For gasoline concrete cutter , we have 6 months warranty. 1. Within 3 ...