Jinan Xinghua Instruments Co.,Ltd
Address:No. 9 Jian Street Jinan Shandong China
Tel:+86-531-67880131
Fax:+86-531-86906490
Email:sales@xhinstruments.com
johnxhinstruments@hotmail.com
Website: http://www.xhinstruments.com
The frame has a bending lever with a roller which pivots on a steel conical mandrel with a diameter from 3.2 to 38mm (0.12 to 1.5"). A graduation indicates the mandrel diameter in mm and inches.