... ISO 9001:2000 international quality management system ball bearing slides,ball bearing slides,ball bearing slides,ball bearing slides,ball bearing slides,ball bearing slides 40mm 3-fold slide; cold- ... an silence running,suitable for economic office furniture;3)load capacity: 40kg, cycle test ... over 50,000 times.4)applications: office furniture, kitchen cabinets, or home drawers5)"32mm" system ...