国家/地区 中国（2）
IPC部 B（2） C（2）
IPC大类 B28（2） C04（2）
IPC小类 B28B（2） C04B（2）
IPC B28B013/02（2）
发明人
公开年 2022（2）
申请年 2021（2）
专利权人

Assembled semi-flexible asphalt concrete road bed block used for bearing and fixing sleeper to form road bed, has groove whose bottom part is embedded with bolt, where grooves in each channel bed base body and adjacent grooves in other channel bed base body jointly bear rail bearing.

PENG G, CHENG J, GONG M, DENG C, XIONG Z, ZHU X, CHU C, HONG J

Concrete wall portion temperature difference generating device has heat collecting system that is provided with blue film plate and red copper flow passage that is set between blue film plate and graphene-concrete wall portion.

TONG Z, MU S, FENG C, FAN Y