Precision V type rack can also be used with a gripping, party box bow frame, can put a V type cylindrical workpieces firm grip in V type shelf, flip to each position crossed.

精密V型架也可作方箱使用，带有夹持弓架的V型架，可以把圆柱形工件牢固的夹持在V型架上，翻转到各个位置划线。

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(v/o) ) After many times of adjustments, this type of musical instruments was quite developed in Yuan Dynasty. It mainly consisted of the bow and the strings.

经过多次改造， % 到了元代， 这类乐器基本成熟， 它的主要组成部分是弓和弦。

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The die, with the hopper-type automatic feeding device, is used for bending various V-shaped, U-shaped and bow-shaped parts and suitable for mass serial production.

介绍了在通用冲床上使用的漏斗式自动送料弯曲模的结构形式、工作过程和设计要点。

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