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Description:A Closer Look at Machine Styles. Threeroll initialpinch see Figure 5 or single initialpinch plate rolls generally are for lightcapacity applications and may be electromechanical or hydraulic. They work by pinching the flat sheet between two vertically opposed rolls while the third, offset roll—or bending roll—moves upward to contact and then bend the sheet.
SourceAccess Heavy Industries Co., Ltd. China(Mainland)