国家/地区 中国（2）
IPC部 B（2）
IPC大类 B22（2）
IPC小类 B22D（2）
IPC C09D005/08（2）
发明人
公开年 2022（2）
申请年
专利权人

Preparing pipe material comprises cleaning mineral-inorganic composite materials, grinding, melting, casting and forming in combination with pipe mold by means of centrifugal casting, demolding and cooling, heating and densifying, and coating anti-corrosion coating.

WANG P

Lead-acid storage battery casting flux drying device comprises ventilation block, ventilation pipe, ventilation hole and device body.

SHAO S, MA X