Straight Ruler, Square, Gauge manufacturer / supplier in China, offering 150mm Zinc Handle Tri S/S Try with Aluminum Handle T Bevel Angle Square Ruler, 500mm Printed Steel Try Square with Aluminum Handle Printed Steel with Aluminum Handle Square Ruler Tri Square, 200mm Woodtools Try Square with Plastic Handle Tri Try 90 Degree Angle Graduated Stainless Steel Square Angle Ruler and so on.