国家/地区 中国（4）
IPC部 C（4）
IPC大类 C08（4）
IPC小类 C08K（4） C08L（4） F16L（4）
IPC C08K003/04（4）
发明人
公开年 2021（4）
申请年 2020（3） 
专利权人

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

Multi-layer composite pipe used for thermal management system of energy vehicle, comprises intermediate layer and plastic layer, where intermediate layer covers outer surface of plastic layer.

SHI M, SHEN H, MA T

Composite material prepared by modifying graphene oxide and treated nano-nickel chromite particles, mixing polyethylene and dispersant, vacuum drying, and vulcanizing, used in aluminum-plastic composite pipe.

INVENTOR U

Modified ultra-high molecular weight polyethylene pipe comprises modified ultra-high molecular weight polyethylene inner tube and PTFE outer wall.

QIAN G