n.石棉
Isrel businessman wants to import drainpipe, asbestus, and alluminum alloy material. 以色列商人求购排水管（三元乙丙橡胶制）、矿（石）棉、铝合金材料。
The analysis shows that the thickness of asbestus between bolt and baseplate and the effect of heat insulation have some effect on the polytetrafluoroethylene working temperature. 结果表明：螺栓与上基板之间的石棉隔热层厚度及隔热效果影响聚四氟乙烯的工作温度。
Asbestus, Dry ice, Material infectants, Lifesaving facilities, gas engines, Polystyrene, Automatic vehicles, Chlorite, Remote control toys, Magnetic materials, Electronic wheelchairs, etc,. 常见的有石棉、干冰、环境污染物、救生设备、装有内燃机的机械设备、聚苯乙烯珠粒料、自带动力的交通工具、二亚硫酸锌、遥控玩具、磁性物质、电动轮椅等。
Keywords plasma spray coating asbestus half metal friction material brake system friction characteristic; 等离子喷涂;涂层;石棉;半金属;制动系统;摩擦特性;
