8.A medium frequency-small size vector hydrophone of co-vibrating type is wrapped with low density compound material and in shuck only one piezoelectric ceramic accelerator is used for each channel to measure the vector components of the underwater acoustic field.
9.Ningbo Yinzhou Shuangchen Hardware Fittings Factory specializes in making all kinds of pressing products, for example iron shuck of socket, copper fittings, skeleton, part of cut-grass machine etc, accepts processing of hardware, pressing part for vehicle, machine.
