Roll former a series of revolving metal wheels or rolls that form a continuous strip of metal into various shapes 成形辊- - -一组转动钢轮或辊子,它能使连续的钢带形成各种形状。
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Safety of machinery - safety requirements for tube forming and rolling mills and their finishing line equipment ; german version en 13675 : 2004 机械安全.管成形辊轧及其精整线设备的安全要求