1)compressed air tool,压缩空气工具2)pneumatic apparatus,风动工具;压缩空气设备3)compressed air clamp,压缩空气夹具4)compressed air diving apparatus, compressed air diving equipment, compressed air diving gear,压缩空气潜水装具5)a/c compressor repair tool group,空调压缩机修理工具组6)valve-spring compressor,气门弹簧压缩工具