The inner cavities at both ends of the roller rod should be filled with fire-resistant fiber cotton with a length of 30-50mm
The inner cavity at both ends of the roller rod should be filled with refractory fiber cotton that is 30-50mm long, with a filling depth of 60-80mm, but not exceeding 100mm.
The inner cavity at both ends of the roller rod should be filled with refractory fiber cotton that is 30-50mm long, with a filling depth of 60-80mm, but not exceeding 100mm.
The inner cavity at both ends of the roller rod should be filled with refractory fiber cotton with a length of 30-50mm, inserted to a depth of 60-80mm, but not exceeding 100mm.
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