blowtorch

"The technician used the solder to join the broken wires on the circuit board. "

"My friend told me there was something in the box, but I didn't know what it was yet. "

"The old plumber worked with lead pipes in the school's plumbing system. "

"The welder joined the metal pipes together to repair the broken fence. "

"With a simple remote, he could control the toy truck."

"He spoke highly of you."

"A tiny spark flew from the fireplace, landing on the hearth rug. "

"By now, you must surely know which is which."

"The school's fundraising projects aim to build a new library. "

"The farmer's fields produced a bountiful harvest of tomatoes this year. "

"The stream ran alongside the school playground. "

"Gasoline is a flammable. "