Common types of rollers:<br>Mainly divided into three rollers and four rollers; manual, simple numerical control (semi-automatic), full numerical control (automatic); hydraulic and mechanical.<br>Specifically, the common models are as follows:<br>Symmetrical three-roll coiling machine, asymmetrical three-roll coiling machine, biased three-center coiling machine, positive three-roll coiling machine, upper-roll universal coiling machine, horizontal down-regulation coiling machine, simple semi-automatic coiling machine, electric coiling machine, small coiling machine, large-scale coiling machine, marine coiling machine, four-roll coiling machine, automatic coiling machine<br>
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