How to distinguish between good and bad styrofoam quality
1. Color：High-quality styrofoam is milky white after being punched out（Snow-white kind）. It’s not good if the color is black, gray or extremely yellow( Describes the use of cheap and inferior quality …
The difference between good and bad polyurethane electronic potting glue
Polyurethane electronic potting glue is a common product with good thermal conductivity, Compressive strengthHigh, strong durability , Corrosion resistance, moisture-proof, suitable forMultiple condit…
How to distinguish the quality of environmentally friendly plasticizers, and how to distinguish the good from the bad?
” >Environmentally friendly plasticizerRefers to organic substances that add plasticizers to plastics, improve the fluidity of the resin during molding and processing, and make the products f…
Discrimination and selection methods of good and bad pipe moisturizer products
There are also some pump lubricant products on the market, but some products are of varying quality and cannot achieve the pump lubricating effect well. The following will select pump lubricants with …
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