If you are planning to import motherboard of respirator,Website:http://www.ljpcb.com, Longjiang Circuit International Limited is one of the leading motherboard of respirator manufacturers and suppliers, welcome to contact with our factory.Type: motherboard of respiratorfinal board thickness: 1.6mmfinal copper thickness: 35ummaterial:HTG FR4solder mask colour: redsilk screen colour: whiteapplication: medical ventilatorMin. line width/space: 0.2mm/0.2mmmin diameter of finished hole: 0.3mmsurface finish: immersion gold