The main mineral components of granite include pyroxene, plagioclase, a little olivine, biotie and trace magnetite. It is precise in structure with black luster and through hundreds of millions years aging, it is of uniform texture, nice stableness, ... - Update: 2009-10-22

Made according to standard JB/T6092-85, material HT200, used to test the perpendicularity and parallelism, and can be used as verfication standard of 90 - Update: 2009-10-22

Square block (as per GB7-62) is an important auxiliary tool in the plate measurement. It is used for inspecting and measuring the tridimensional lineation by fitters, the parallelism and verticality of machining parts, as well as various location dif... - Update: 2009-10-22

Square block (as per GB7-62) is an important auxiliary tool in the plate measurement. It is used for inspecting and measuring the tridimensional lineation by fitters, the parallelism and verticality of machining parts, as well as various location dif... - Update: 2009-10-22

The Jingda granite series instruments are made of high quality Jinan black granite stone.Due to the high precision,long duration,good stability and corrosion resistance,they have been more and more used in product inspection of modern industry and sc... - Update: 2009-10-22

Made according to Standard JB/T8047-95,made of HT200-250,supplied in pairs.It's used in testing, Line drawing and position setting of precision axles and the mounting in mechanical machining. Please send us your inquiry,we will appreciate you ver... - Update: 2009-10-22

Made according to Standard JB/T8047-95,made of HT200-250,supplied in pairs.It's used in testing, Line drawing and position setting of precision axles and the mounting in mechanical machining. - Update: 2009-10-22

Square block (as per GB7-62) is an important auxiliary tool in the plate measurement. It is used for inspecting and measuring the tridimensional lineation by fitters, the parallelism and verticality of machining parts, as well as various location dif... - Update: 2009-10-22

Usage: Test, measuring, lineation, equipment installation, construction of industrial engineering. Characteristric: Light: See details on the form of data. Convenient for using: One six-meter leveling ruler, the operator could move it easily. Non... - Update: 2009-10-22

This product is mainly used to test the parallel,level measurement to the accuracy sprate part. The base of it is made of high quality Jinan black granite stone.Due to the high precision,long duration,good stability and corrosion resistance,they... - Update: 2009-10-22