国家/地区
IPC部 B（2）
IPC大类 B05（2）
IPC小类 B05D（2）
IPC B05D003/04（2）
发明人
公开年 2023（2）
申请年 2022（2） 
专利权人

Preparing internal spiral polyvinyl chloride drainage pipe, comprises e.g. bending and spiraling steel wire, extruding, injecting into brushing mechanism, carrying out spiral groove processing, forming inner spiral groove, spraying, extruding, painting and performing preliminary drying.

LIU Z

Manufacturing molded board useful for furniture, furniture parts comprise preparing wood raw material and functional composition having moisture-proofing and mold-inhibiting effects, molding mixture, and thermosetting adhesive.

CHOI M B