Roller Chain, Sprocket, Pulley manufacturer / supplier in China, offering Superior Industrial-Grade High-Performance Transmission Conveyor Engineer Chain with Attachment – Large-Size Double Pitch Cast Welded Bent Scraper Chain, Premium Durable Transmission Conveyor Chain with Attachment– Large-Size Double Pitch Cast Welded Bent Scraper Chain for Heavy Load Applications, High-Strength Transmission Conveyor Engineer Chain with Attachment – Large-Size Double Pitch Cast Welded Bent Scraper Chain for Industrial Machinery and so on.