The mould press prebending adopts involutes types mould and simultaneously fold bending the two edges of plate by steps.
模压式预弯采用渐开线式模具，分步对钢板的两边同时进行折弯。
Generally, two plate mould consist of eight plates and there are their standard dimensions, respectively.
通常的，二板模由八个板组成且它们都有各自的标准尺寸。
Generally, two plate mould consist of eight plates and there are their standard dimensions, respectively.
通常的，二板模由八个板组成且它们都有各自的标准尺寸。
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