The quality of agricultural machinery oil is directly related to whether the agricultural machinery can operate normally. If the quality of oil for agricultural machinery does not pass quality, not only agricultural machinery will be prone to failure, but also the agricultural machinery itself will cause great harm. Therefore, we must pay attention when choosing agricultural oil. Here is a simple four-step method of identification.
1, see: look at the appearance of oil products.
Different kinds of oils have different color appearances. . Carefully observe the appearance color of the oil, the color is pale, mostly light fractions and deep refined oils, dark in color, mostly residual oils, oils with low degree of refinement, or heavy distillate oils. .
2, smell: smell the smell of oil products.
The smell of oil is generally divided into gasoline, kerosene, diesel, alcohol, aromatic, sour, and so on. The oil added with additives has a certain sourness; the oil with alcohol composition has alcohol taste; the light solvent oil has aromatic flavor.
3, touch: used to touch the oil and the soft and hard conditions and smooth feeling.
The refined oil hand mold has a strong sense of smoothness, and poorly refined oil has a poor smooth feel. The grease and the hardness can be divided into different grades. The smaller ones are softer, and the larger ones are harder.
4. Shake: Observe the thickness of the oil after shaking.
By shaking the oil in a colorless glass bottle and observing the phenomenon of oil film hanging and the occurrence and disappearance of air bubbles, different grades of oil can be basically distinguished. Small-viscosity oils produce more bubbles, rise faster, disappear faster, and have less hanging bottles; oils with large viscosity produce less bubbles, slower rise speeds, and slower disappearance, but more oil is hung on bottles.
Waist Heating Pad is similar to regular Heating Pad, but normally used specifically to relieve pains caused to human waist.
It is with a detachable controller with 4 temperature settings as option.
It will shut off automatically after 2 hours for the sake of safety.
Besides, the internal heating element also has the function of overheating protection, to ensure safety when people use it.
Below image as a reference:
Waist Heating Pad
Heating Pad for Waist, Waist Heat Pad for Winter, Multi-Purpose Waist Heating Pad, Large Waist Heat Pad
Ningbo JustLive Electrical Appliance Co., Ltd , https://www.makeheat.net