焊接滚轮架的主动轮与从动轮上各有两只滚轮，选用金属材质的滚轮，这样就可以大大提高本焊接滚轮架的承载能力。

The driving wheel and the driven wheel welding roller frame each have two wheels, the wheel of metal material, so it can greatly improve the bearing capacity of the welding roller frame.

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ZT系列用途和特点：由一台主动架和一台从动架组成，用于支承和焊接园形简体类工件。

ZT SeriesUse and characteristic:Are composed by a driving frame and a driven frame, uses in supporting and the welding garden shape simplified form class work piece.

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