国家/地区 中国（2）
IPC部
IPC大类
IPC小类
IPC
发明人 HAN B（2）
公开年 2019（2）
申请年 2019（2） 
专利权人

Active powder concrete comprises cement, graphene, silica fume, fly ash, sand, water reducing agent, and water.

HAN B, WANG J, DONG S

Resin composition for producing coated sand comprises thermoplastic phenol resin, liquid thermosetting phenolic resin, curing agent, and additive, the additive comprises one of a metal oxide, silicon carbide, high purity silicon or graphene.

HAN H, HAN B, HAN J, JING G, MIAO J, ZHANG S, WANG D, LIU J