POSITION: 
granite parallels
INTRODUCTION： Granite parallels also known as granite leveling rules, marble leveling rules. Granite flat......
Granite tri square
INTRODUCTION： Granite tri square is mainly used to measure the flatness, perpendicularity and straightness of ......
Granite Straight edge
INTRODUCTION： Characteristics and characteristics of Granite Straight edge: 1. High hardness, good rigidity,......
Black Granite Straight Edge
INTRODUCTION： Applications : 1.Widely used for checking straightness and marking purposes. 2.Granit......
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