传统手工制作方式，生产效率低，工作强度大
1. The traditional manual production method has low productivity and strong working intensity.
2、技术工难招，人工成本高，成品率低
2. Skilled workers are difficult to recruit, with high labor costs and low yield.
3、占地面积大，环境脏、乱、差
3. The area is large, the environment is dirty, messy and poor.
4、易损件多，铸件质量低下，生产费用高昂
4, many vulnerable parts, low casting quality, high production costs