We have not display all the High Speed & High Frequency material name here. If you need other kinds of materials, please let us know the type of material you need. Normally, we have many kinds of high frequency and high speed materials in stock, which can be used and manufactured at any time. Our company has produced many Hybrids & Mixed Dielectrics High Speed & High Frequency PCBs. HDI High Speed & High Frequency PCBs.  Open Cavity on the High Speed & High Frequency Boards Or Buried Cavity in the High Speed & High Frequency Boards. Our email: info@alcantapcb.com