I haven't tested the PCB boards yet, but apparently they are of good quality. The PCB are made of fiberglass.
Заказал 8 января получил 25 января.Товар упакован хорошо,дошел без повреждений.Качеством товара и обслуживания продавца доволен.По мере надобности буду заказывать ещё. Has Booked the January 8 has got the January 25.Goods is packed well,дошел without damages.The Quality of goods and service seller complacent.On measure of the necessities shall book else.