China's Huawei looks to ports, factories to rebuild salesbr br As technicians in a distant control room watch on display screens, an automated crane at one of China’s busiest ports moves cargo containers from a Korean freighter to self-driving trucks in a scene tech giant Huawei sees as its future after American sanctions crushed its smartphone brand.br br The backbone of the “smart terminal” at the Tianjin Port, east of Beijing, is a data network built by Huawei, which is reinventing itself as a supplier for self-driving cars, factories and other industries it hopes will be less vulnerable to Washington’s worsening feud with Beijing over technology and security.br br The ruling Communist Party is promoting automation in industries from manufacturing to taxis to keep China’s economy growing as the workforce ages and starts to shrink. Its managers say the “smart terminal,” part of Tianjin’s 200-square-kilometer (77-square-mile) port, allows 200 employees to move as much cargo as 800 used to.