KARACHI: The National Tariff Commission (NTC) on Wednesday imposed definitive anti-dumping duties on imports of galvanised steel coils and sheets in the range of six to 41 per cent. The duty on Chinese exporter Angang Steel Company is 40.47pc, followed by 31.31pc on Hebei Iron and Steel Co. Ltd., 9.13pc on Bengang Steel Plates Co. Ltd., 6.09pc on Maanshan Iron and Steel Co. Ltd. The rate on all other producers and exporters from China is…