HONG KONG, Sept 19 (Reuters Breakingviews) - Huawei’s new phone demonstrates China can produce cutting-edge hardware despite U.S. restrictions. But the country’s ability to profitably scale its success remains unclear. Lasting victory in the chip war will only be within reach if its companies can live without serious government funding. The Shenzhen-based company has not explained exactly how seven-nanometer chips ended up in the new Mate 60 Pro smartphone series. However, a teardown by analysts at TechInsights showed the device’s Kirin 9000s processors were made in China. The researchers hailed a milestone: their observations suggest Semiconductor Manufacturing International Corp (0981.HK)...