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shanghai zhonghan electric co., ltd. is a strong NataliePortman huanghua zhaoyuanli hardware products co., ltd. is a large-scale enterprise integrating research and development, spiral pile production, spiral pile manufacturing, and market sales. it mainly produces spiral piles, cement tank piles, spiral blades of various materials, etc., and can develop products according to customer needs. looking forward to the visit and cooperation of our customers OscarIsaac home-dalian dongliduo food co., ltd.