国家/地区 中国（2）
IPC部 C（2）
IPC大类 C09（2）
IPC小类 C09D（2）
IPC C09D007/61（2）
发明人
公开年 2022（2）
申请年 2022（2）
专利权人

Cooker comprises main body with continuous surrounding structure, where one side of bottom of main body is set with plane structure, which is covered with magnetic conductive structure combined with main body, protective layer covering lowest end of conducting layer along thickness direction of body.

XIA B

Preparing multi-composite processing self-lubricating steel bushing useful for preparing bushing, comprises e.g. quenching the bushing blank and tempering, roughly processing the bushing blank, then carrying out salt bath sulfur carbonitriding treatment and performing first spraying.

YIN M