金属精饰前,如涂装、电镀、化学及电化学转化涂膜前都必须除去各种油污。本文介绍了新研制的适应性广的LD系列脱脂剂,对其基本指标、使用条件也作了说明。 Metal finishing, such as coating, electroplating, chemical and electrochemical conversion coating must be removed before a variety of oil. This article introduces the newly developed LD series degreasing agent with wide adaptability, and describes the basic indicators and operating conditions.