ZZRS-WP082
80*60cm
Gas Collection Wall Puzzle Learning Tools

Let the children understand that natural gas as a gaseous fossil fuel can be transported through the collection, transportation, purification, pressure and natural gas pipeline to millions of households, and through the use of gas stoves and water heaters to people's cooking and bath to bring convenience.

Description




Oil Pumping Principle

Connecting rod through the cam drive pump piston up and down movement, the collection of water out of the water tank to the reservoir,

showing the principle of mining oil.






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