the difference between double-layer roll forming machine and trapezoidal sheet roll forming machine.double layer roll forming machine can produce multiple models and trapezoidal sheet roll forming machine can only produce one model.However,the double layer cannot produce two kinds of panels at the same time.The double-layered roll forming machine adopt the new design,one machine for two purposes,small size,convenient transportation and cost saving.
The double layer roll forming machine saves space,tand the implantation rate is also improved.
