fountain roller
1.Ningbo Jiaochuan Stationery Manufacture Co., Ltd. is a big and beautiful pen-made factory which is mainly engaged in metal, semi-metal, plastic ballpoint pen , plastic pen and mechanical pencil, fountain pen, gel ink pen, roller pen etc. we can supply over 400 designs pen items, with the annual production capacity of 40 million pieces and the right of self-import and self-export, 95% of our products exported to Europe, South America, Middle East, South-east Asia etc.Our customers are satisfied with our goods because of steady quality, professional technology, competitive price and responsible sales service.
2.Analyze these data with time domain and frequency domain method and calculate vibration frequency according to vibration mark of work roller and strip, look for the vibration rule and vibration main frequency and suspicious vibration fountain, and primary make certain the cause consecutive hot rolling mill vibration.
