Vợt cầu lông Yonex Astrox 77 Tour chính hãng

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°CASTRA® MT77 laminate materials exhibit exceptional electrical properties which are very stable over a broad frequency and temperature range. Astra MT77 is suitable for many of ’s