国家/地区 中国（2）
IPC部 B（2）
IPC大类 C04（2）
IPC小类 C04B（2）
IPC C04B111/52（2）
发明人
公开年
申请年 2021（2）
专利权人

Polyester fiber carbon neutralizing sound absorbing plate comprises a polyester fiber sound absorbing plate base body (polyester fiber, and nano carbon material, acetylene black, carbon nano-tube and graphene oxide).

ZHANG H, ZHOU T, WU S

Preparation of three-dimensionally printed cement noise reduction barrier involves preparing reinforced composite cement slurry using e.g. quartz sand, feeding into feed system for layer-by-layer printing, and assembling.

YUAN F