相关产品 多楔带用 135 138 系列托辊 固定式摩擦驱动托辊(带多楔带挠性接头) 135 138 for toothed belts Fixed and friction driven rollers with toothed belt head KRO series for round belts driven tapered rollers with two grooves head Driven tapered rollers with two grooves head for round belt transmission