About Spiral Ground Piles for Photovoltaic Support FOB price, Payment, OEM information, wholesale Pile Driver from china companies factories on topchinasupplier. Shandong Liaocheng Hongli Metal Manufacturing Co., established on July 11, 2016, is a manufacturer of photovoltaic spiral ground piles integrating design, R&D, and production. Its essence is galvanized steel pipe pile with screw blade welded. The spiral blade can well increase the resistance of soil to it and enhance the pulling force of the spiral pile. The vertical bearing capacity. Still deciding? Get samples first! Order sample Still deciding? Get samples first! Order sample Every payment you make on Alibaba. com is secured with strict SSL encryption and PCI DSS data protection protocols Claim a refund if your order doesn't ship, is missing, or arrives with product issues. The company has more than 20 advanced photovoltaic anti-seismic supports, Czu Steel, profiled steel welding and production lines, more than 200 skilled workers, annual profile processing capacity of three hundred thousand tons, product variety, high quality.