Model DH 608-3B and DH 750-3B are high speed crochet machines for the production of elastic and inelastic bands in the use of lady's underwear, rigid and elastic body belt, medical bandages and etc. 

1. With double swing device,  the consumption of needles has been reduced.

2. The elastic bar only makes left-to-right movement, which increase the stability of elastic threads when machine runs in high speed.