Lead & Sulfur free Temperature Indicating Crayons/Chalks is used in various sectors like - welding industries during pre-welding, inter-pass, and post welding, annealing, foundries, oil refineries, aluminum refineries, iron and steel making industries, glass industries etc. VPL Chemicals Pvt Ltd manufactures Lead & Sulfur free Temperature Indicating Crayons/Chalks. VPL Chemicals Pvt Ltd is an ISO 9001:2000 certified company. Lead & Sulfur free Temperature Indicating Crayons/Chalks is available in various temperature ranges systemically spaced between 40 degree C to 1200 degree C.
