['The', 'roller', 'frame', 'is', 'an', 'essential', 'component', 'of', 'the', 'mule', 'spinning', 'machine', ',', 'serving', 'as', 'the', 'stationary', 'part', 'that', 'supports', 'the', 'entire', 'structure', '.', 'It', 'is', 'crucial', 'for', 'maintaining', 'the', 'alignment', 'and', 'tension', 'of', 'the', 'yarn', 'during', 'the', 'spinning', 'process', '.', 'Without', 'a', 'properly', 'functioning', 'roller', 'frame', ',', 'the', 'efficiency', 'of', 'the', 'spinning', 'operation', 'would', 'significantly', 'decrease', ',', 'leading', 'to', 'subpar', 'yarn', 'quality', '.']
[[1, 2, 'Textile Machinery']]