Board loading, unloading and processing machines comprising board unloader, board loader, bare board vacuum loader, board inverter, angle turning machine, gate passage conveyor, buffer loader, buffer conveyor, conveyor, ball grid array unloader, for use in pushing design production line automatic temporary storage equipment; tin spray machine for spraying liquated tin on large components; automatic spray fluxer for spraying soldering flux in PCB; Pb-free soldering machines, autogenous and gas...