有myhome的也可以到UL的iq里查: UL iQ™ for AWM (Appliance Wiring Materials) UL iQ™ for Electrical Insulation Systems Database UL iQ™ for Plastics Database UL iQ™ for PWBs (Printed Wiring Boards) UL iQ™ for Restricted Substances Database UL iQ™ for Switches Database