Bar-type ground rack also called groundrails, it is a common equipment in the construction. It is used for theassembling,trial,welding and testing of large-scale equipments.
Material: HT200-300
Surface Hardness: HB170-240
Heat Treatments: twice annealing, 600℃to 700℃
The product accuracy stability,wear-resistingperformance is good.
Cast Iron Square, also called testing square, parallelsquare,rectangular try square,etc.The material HT200-250,according to thestandard GB6092-85. It is a 90℃measuring benchmark.
Cast Iron Square often used for detecting theworkpiece parallel and vertical degree,it is an industrial measurementbenchmark measuring tool.On the working Surface can not have defects, such assand hole,air hole,crack,scratch,dent,etc.