lead-covered oil impregnated paper tape insulated cable
steel-tape armoured lead sheathed high-frequency communication cable
steel-tape armoured lead sheathed low-frequency communication cable
steel-tape armoured lead sheathed telephone cable
red lead lead tetroxide
Lead(IV) oxide (Lead Dioxide， Lead Peroxide)
lead and lead-4% antimony alloy
lead and lead-antimony alloy
Lead and lead-free mixed assembly technics
lead-acid batteries with lead-alloy fiber mesh grid
lead-fiber wound lead-acid battery
Lead-saving technology for lead-acid batteries
line of lead-in and lead-out
paper tape to magnetic tape
paper tape to magnetic tape conversion system
punched tape to magnetic tape
punched tape to magnetic tape converter