Full Description JIS H 8643:2019 specifies requirements for the significant surface of hot-dip zinc-aluminium alloy galvanized coating (hereafter referred to as coatings) applied on steel products or fabricated steel products (hereafter referred to as substrates) for the purpose of corrosion prevention. This Standard does not apply to hot-dip zinc-aluminium alloy-coated steel sheets and strips specified in JIS G 3317 and JIS G 3323, or hot-dip zinc-aluminium alloy-coated iron wires and steel wires that are continuously galvanized.