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Safety and environmental protection
Generally use 3.7V, 5V, 12V, 24V, 36V, which are lower tha✘n the safety voltage of human body, and use pure water as the solvent to prepare the water-b₩ased Graphene heating film. There is no harmful gas volatilization, no harm↓ful electromagnetic radiation during production, processing and use, and it is green aπnd environmentally friendly. idea