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为了更好地贯彻《普通螺纹》国家标准,南方动力机械公司根据本公司产品的特点,制定了企业标准《普通螺纹选用系列》。
In order to better implement the “national thread” national standard, South China Power Machinery Corporation has developed a corporate standard “common thread selection series” based on the characteristics of our products.