The Nice Liquid Flux which is no rot,in line with AWS/ANSIA5.31 standards. 1,The Nice Liquid Flux which is no rot,in line with AWS/ANSIA5.31 standards.In 900~1200°C for brazing carbon steel,copper and copper alloy.2,The packing of the liquid flux as follow:4L/pail ,20L/pail.3,The Nice Liquid Flux is spoken highly by the customer all the way!