anti 5G RF blocking hat for summer RF blocking hat EMF protection hats 5G blocking hat anti 5G hat shielding range:10MHZ-3GHZ Attenuation:55-65DB size black, grey color sky blue, dark blue, black, royalblue, ...
Since 2003, Aiwei Functional Textile Co., Ltd has been a professional manufacturer of silver fiber and metal conductive textiles in Baoding, Hebei, China. Our main products are RFID blocking fabric, anti-radiation fabric...