国家/地区 中国（3）
IPC部 C（3）
IPC大类 C08（3）
IPC小类 C08K（3）
IPC C08K003/04（3） C08L023/06（3） C08K003/26（2）
C08K009/04（2） C08K009/06（2）
发明人 ZHANG Y（3）
公开年
申请年
专利权人 ANHUI CHAOXI.（2）

High density polyethylene corrugated pipe useful in the field of transportation and construction, comprises inner wall and outer wall, where the inner wall includes enhanced HDPE master batch, magnesium carbonate, zinc sulfide, pentaerythritol ester and polyethylene wax.

LI W, JIANG J, ZHANG 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

Anti-freezing rubber tube with graphite heat preservation layer comprises first rubber layer, first graphene layer, second graphene layer, second rubber layer, graphene is provided with insulating layer, and anti-freezing rubber tube.

ZHANG Y, ZHANG Z, GENG Q, LIU G, SUN Q