Contrast experiments confirm that the performance of the treated sifter mesh is better than that of other current domestic products of the same kind and its averageservicelife is greatly improved.
经寿命对比实验，用该工艺处理的筛片比目前国内生产的同类产品好，性能有大幅提高。
2
Lace galvanized frame molding equipment adopts the principle of the average stress, also the average stress of roller, the balance of the wear, prolong the servicelife of roll.
花边镀锌门框压型设备采用各排平均受力原则，全线滚轮平均受力，磨损均衡，延长轧辊使用寿命。
3
As a business_level professional amplifier, its servicelife is three times more than the average.