... .34250.5762211250 1000 1200 are our usual practice in size. And we can make it: 1000-1250mm as ... slow-cooling stage, and is then taken into a zinc tank for hot dip aluzinc alloy coating at an ... is 3-6 times longer than the service of zinc coated steel sheet and is equal to that ... a compact protective film of aluzinc hydroxide and alkaline zinc chloride,etc.This film has a weak electric conductivity, and ...