国家/地区 中国（2）
IPC部 B（2）
IPC大类 B08（2）
IPC小类 B08B（2）
IPC
发明人
公开年 2021（2）
申请年
专利权人

Cleaning steel pipes involves using high-pressure gas pulse to flush the cleaning liquid into the pipeline to be cleaned, and introducing ultrasonic waves.

LI R

Cleaning of reactor during drug synthesis, involves pouring lye into reactor, closing reactor, pouring out spent lye before use, rinsing with purified water, and adding ethanol solution to alkali-washed reactor.

DENG Y