The model F10-30 is the double 10inch wooden portable party speaker with bluetooth, it's powered with shinning light and big lead acid battery 7.2ah which give it big power and longer playing time, suit to take to outside party.
EMT set screw steel coupling is used to bond unthreaded EMT conduit with EMT conduit. Its heavy gauge steel construction maintains mechanical protection and its set screw construction provides tight connection. In addition, it is pure steel and zinc plate
Silica brick is made of silicon as raw material and fired at high temperature. The silicon oxide content is more than 93%. It is used in hot air furnace, coke oven, glass kiln, etc. It has good resistance to acid slag corrosion, and the load softening tem