F.\taluminium ladder making machine\nladder making machine, expanding machine model:zyj and flaring machine model: jm16dt for processing aluminium ladder, applying to square rung and o-shape rung with rectangle profile.\n1.\tfirst to open rung and expanding it on profile tightly \n2.\tsecond step is to flaring ,it can be single section ladder ,folding ladder ,extension ladder and multi-purpose ladder etc.\n