... paint black on its are high strength,wear-resistant and nice appearance, notsurface, the advantages easy ... WheelJiangSuRaw materials is polyurethane imported fromGerman , wear-resistant, oil-resistant,Water-resistant, anti-aging anti-fatigue.Bent slidewaysTYPICALUse high quality ... bronze sliding bearing, bearing with big capacity,wear resistant, low noise.Upper andlower partsjiangSutop to bottom center ...