... connector, making the connection plate without using nails or screws Furniture Connector Plate ConnectorsTechnology This utility model relates to a material ... part of the lift plate; and left and right sets of sets of the lower part is the cover, the Eccentric gear ... gear, 7 pin, 8, positioning holes, 9, plywood, 10 journal sets, 11, spiral groove, 12, screw, 13, interconnect, 14, interconnect. ...