... aluminum alloy design,fastening reasonable(handrail) 1.The handrail use of polymer adornment:PVC, ABS, anti-corrosion and anti-bacterial ... finishes.2.Installation maintenance conrenient,durable.3.color models of diversity,and varied in style to meet the environmental ... core professional quality aluminum alloy design, fastening reasonable.5.Fire-retardant,anti-bacterial and form simple, neat and easy ...