... 3.acid and alkali-resistant 4.free sample fep electrical wire Tinning and silver plating copper fluorine plastic insulation ... or others.Color: red, yellow, blue, white, black, green, brown, grey, purple.Features: excellent fire-resistant, acid and alkali-resistant ... , electric smelting, chemical industry, ships, vehicles, food machinery, household electrical appliances, oasthouse and so on. fep ...