auxiliary winding-up roller

backed up roller leveller without pressure regulation

covering apron for take-up roller

lift-up roller

plank for prop up roller

take-up roller

power-driven back-up roller

Building up

Building up a fortune for farmers

building up body qigong．Wuqinxi

building up fertility with organic materials

building up hole angle

building up human resource

building up of national defence

building up principle

Building up process of strong earthquakes

building up station

Building-up

building-up by welding