其中一个最大的调整是找到质量可靠成本可控的制造商。
One of the biggest challenges is finding a high-quality, low-cost manufacturer.
生产实践表明，三步法工艺效果好，且生产成本可控。
Practical application shows that three-step process has superior results, and the production cost is controllable.
生产实践表明，三步法工艺效果好，且生产成本可控。
Practical application shows that three-step process has superior results, and the production cost is controllable.
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