... , save cost and manpower New arrival manual grommet machine made in China Dimension: 150*150*100 mmMould size : standard 4 #or 6 ... is 2 parts/set, positive ring and negative ring. To make grommet need install positive ring, and negative ring, then put ... cost; operation is easier, work faster, can make around 1000pcs/hour; light weight, rivalrous price. New arrival manual grommet machine made in China