Straight Ruler, Square, Gauge manufacturer / supplier in China, offering Aerospace Aluminum Laser T-Square 300mm - Anti-Warp Design for Hardwood Engraving, 300mm Laser-Calibrated T-Square - Anodized Aluminum for Dust-Proof Woodworking Layouts, Precision Laser T-Square 300mm - Industrial-Grade Tool for Cabinetmaking & Joinery Accuracy and so on.