... according to the international advanced technology standard;√ Advanced two-stage drive system, with stable and reliable performance and low noise;√ Imported ... ,conical ring die,V-belt drive√√√√√√double roller,hoop ring die,V-belt drive√√√√√√MUZL420double roller,conical ring die,V-belt drive √√√MUZL420Cdouble roller,hoop ring die,V-belt drive √√√Processing parameters ...