A typical shell or solid rubber, plastic pots have a vibration resistance strength, electrical insulation. Does not react with acid. High and low temperature resistance
Basically, the shell is made of hard rubber or plastic pots are strong. Resistant to vibration insulation. Does not react with acid Withstand high and low temperatures
In general, the shell is made of hard rubber or plastic pots, strength, vibration resistant electrical insulation is not react with acid, high temperature resistance and low.