A copper pipe is welded using solder and a propane torch

Connection, Fire, Burn, Hot, Heat, Construction, Industry, Industrial, Worker, Professional, Metal, Gas, Tool, Factory, Flame, Repair, Soldering, Solder, Tube, Pipe, Contractor, Weld, Central, Joint, Torch, Pipes, Piping, Cutter, Plumber, Plumbing, Fix, Connector, Copper, Propane, Fitting, Blowtorch, Butane, Welding, Welder, Elbow, Flux, Pipelines, Metallurgy, Acetylene