The result of welding experiment and production practice show that the welded rear-axle housing have quality stability and high precision and fatigue strength.
通过试验和生产验证，所焊接的后桥壳体精度高、抗疲劳性能好、质量稳定。
The rational selection of spinning condition so as to improve the spinning stability and structure of POY is the key point for production of fine denier polyester drawn yarn of high quality.
合理选择POY的纺丝条件，以提高纺丝稳定性，改善POY结构，是制得质量优良的细旦聚酯拉伸丝的关键。
The production of products with high quality, complete kinds, good stability, strong practicability is known, the products are exported to Europe and the United States.
所生产的产品种类齐全，以品质优、稳定性好、实用性强而著称，产品远销欧美。
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