Reuters: China High Speed Transmission Equipment Group Co Ltd (0658.HK: Quote, Profile, Research), the country’s top maker of gears for wind power transmission, plans to nearly quadruple capacity over the next two years to feed a robust global appetite for renewable energy as oil prices skyrocket. China High, which vies with Belgium-based Hansen Transmissions International (HSNT.L: Quote, Profile, Research) and the business Siemens (SIEGn.DE: Quote, Profile, Research) inherited when it bought …