15A long spring 16 cm long
15A30A high valve
15A30A high baffle
15A30A70A low valve
Indium tin alloy wire
Mountain-shaped tungsten wire usage demonstration
Ordinary aluminum strip
Nickel-chromium wire
Aluminum wire
Lace aluminum piece 20x4x0.2
High-purity aluminum sheet 22x11x0.2
High purity indium wire