... the metal recycling rate could be to 98%D.The high voltage electrostatic spearator recycling rate is ... Patent No.: ZL200720089238.1Utility model patent certificate of Waste PCB Board Crushing Machine pressure separator: Patent No.: ZL200720089239. ... waste printed circuit board,computer boards, TV boards, aluminumplastic panels, coppercoated plates, printed circuit boards and processing waste and waste ...