国家/地区 中国（2）
IPC部 B（2）
IPC大类 B29（2）
IPC小类 B29C（2）
IPC C08K003/04（2）
发明人
公开年
申请年 2021（2） 
专利权人

Long-term oxygen blocking floor heating pipe with far-infrared radiation function comprises ethylene vinyl alcohol resin, graphene, seaweed carbon, ceramic powder, silica, maleic anhydride grafted polyethylene and heat-resistant polyethylene.

JIN T, LEI G, PENG Y

Combined pressure-resistant double-wall corrugated pipe has corrugated pipe provided with corrugated grooves, and exhaust pipe passing arc-shaped limiting groove and installed on annular airbag, which is in contact with corrugated groove.

LIU L, JIANG H, ZHANG Z, JIANG J, ZHANG Y