KLANG: Many foreign companies are using Malaysian-made rubber materials in their construction industry, but local firms continue to rely on imports. Describing the situation as “ironic”, Plantation Industries and Commodities Minister Datuk Seri Mah Siew Keong urged local firms to buy Malaysian-made rubber materials. “Many foreign countries are using our products, but Malaysians are not. I think this must change,” he told reporters during a visit to Doshin Rubber Products…