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日本椿木链条公司首次推出完全不需加润滑油的链条传送带。链条磨损是由于链条之间的接触,这种不需加润滑油的链条则采用工程塑料制成的
Japan’s Chun-wood chain company first introduced completely without lubricating chain conveyor belt. Chain wear is due to contact between the chain, this does not require lubrication of the chain is made of engineering plastics