astra77The Astra MT77 laminate materials from Isola have been desned for commercial RFmicrowave printed circuit desns. They feature a dielectric constant (Dk) that is stable between -40°[email protected], current as of 02182025 @astra77.ru (contact person Natalia Vladimirovna G.), current as of 03212025 @astra77.ru, current as of 07112025 * The date of