... 5)Safe, Durable & LOW price Porcelain Terminal Block LH2520 250A ! push type speaker terminal Product NamePorcelain Terminal/Electric Contactor LH2520ManufacturerFuzhou Longhuang Electrical Apparatus Co ... voltage insulator, fuse, and bakelite lamp holder, adapter plug, socket, terminal block, etc. Our company was preparatorily founded in 2006 with an ...