Granite ruler, granite parallel ruler, marble ruler-Gaotang Ruijing Precision Machinery Co., Ltd

The granite parallel ruler can be matched with a square to test the verticality of two machine parts that cannot be teste...

Granite ruler is mainly used to measure the flatness and straightness of machine tool workbench, guide rail and working s...

When using a marble ruler, handle it with care, preferably wear gloves, and do not touch the working surface of the angle...