女同学浮乱系列辣文小说_公交车啪啪_得物新人优惠券怎么领_老司机精品久久

The Grease Dropping Point Tester is designed and manufactured in accordance with the requirements of the National Petrochemical Industry Standard SH/T0115 "Determination of Grease and Solid Hydrocarbon Dropping Point". This instrument is an air bath. It measures the dropping point of grease and solid hydrocarbons with a dropping point above 100°C, that is, puts the grease and solid hydrocarbons into the grease cup of the dropping point thermometer, and puts them in the grease cup under specified heating conditions. The temperature at which the sample drops a drop of liquid or flows out of an oil column 25mm is called the dropping point.