1. Light weight; 2. Complex shape; 3. Strong hardness, not easy to deform; 4. According to different...
1. Light weight; 2. Complex shape; 3. Strong hardness, not easy to deform; 4. Special surface treatm...
1. Light weight; 2. Complex shape; 3. Strong hardness, not easy to deform; 4. Special surface treatm...
1. Light weight; 2. Complex shape; 3. Strong hardness, not easy to deform; 4. According to different...