环件轧制是一种生产无缝环形件的特种加工工艺，它是通过连续局部塑性变形方法，将小直径截面的环形毛坯逐渐轧制成大直径小截面的环形件。
Ring rolling is a specialized rolling processing technic to manufacture seamless rings, in which the diameter of the ring increases as the ring cross-section decreases.
弦轴板：利用德国传统的制造工艺，以进口枫木、色木为原料，通过特种技术加工。
Board of String Spindle: We use Germany traditional manufacture process and take imported maple, stained wood as raw materials to process under special technique.
弦轴板：利用德国传统的制造工艺，以进口枫木、色木为原料，通过特种技术加工。
Board of String Spindle: We use Germany traditional manufacture process and take imported maple, stained wood as raw materials to process under special technique.
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