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我们生产铝合金连杆16年，2018年产量达到500万只，2019年预计达到600万只，主要运用于汽车空压机，通用汽油机。We produce conrod for 16 years, sold 5 million in 2018 and an estimated 6 million in 2019. It is mainly used on automobile air compressors and motorcycle engines.