国家/地区 中国（2）
IPC部 F（2）
IPC大类 F28（2）
IPC小类 F28D（2）
IPC
发明人
公开年
申请年 2020（2）
专利权人

Bidirectional cast iron gate, has door frame provided with first cast iron door and second cast iron door, and servo motor whose output shaft is connected with rotating shaft through coupler, where top of door frame is welded with mounting chamber.

DU Y

Solar building integrated PVT component, has photovoltaic battery assembly and micro-heat pipe array that are made of graphene heat-conducting material, and airfoil heat exchanger whose two ends are connected with insulating water tank.

LIU X, YANG L, CHAI Y, WEI W, GU J, KANG H, LIU Y