国家/地区
IPC部 C（2）
IPC大类 C23（2）
IPC小类 C23C（2）
IPC
发明人
公开年 2023（2）
申请年 2021（2）
专利权人

High-pressure needle valve for controlling flow of high-pressure fluid or gas flowing through pipe, has replacement type metal seal inserted into inlet port of valve body, and sleeve fixture formed with through hole for flow path.

KIM H H, KIMYOONSIK, OH J, SU Y H, YONGJUN K, LEE S J

Use of nitrogen-doped graphene metal material in heat-conducting field where nitrogen-doped metal graphene comprises metal base material and nitrogen-doped graphene.

WU Q, MA Y