https://www.ovensandhobs.uk/pr....oducts/sia-20l-stain
How is a Microwave Built? Microwave ovens have brought home convenience to a completely new level. They are designed to fit inside wall cabinets or over kitchen islands. They are constructed from a variety of materials. The cavity magnetron tube emitting microwaves was invented in 1940 at Birmingham University in England. Percy Spencer realized that this device could be used to heat food when he observed eggs and corn pop cook. Raw Materials Microwave (MW) heating is gaining popularity in the field of
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