Aluminium alloy tubes for folding umbrella-holder are applied for high-grade sunshade umbrella or rain umbrella. We optimized annealing technology, produced high elongation and high strength product.
英
美
- 为了使民用器具轻量化，开发了高级折叠遮阳伞与折叠雨伞用铝合金管材，优化了退火工艺，生产出了高伸长率和高强度的产品。满足了使用要求
