Drag Chain Wire Carrier Totally Enclosed Low Noise Towing Chain Detachable Assembly 0.7meterD20x57 Item Type: Drag Chain Material: Nylon 66 Application: Suitable for engraving machine, CNC machine tool, mechanical arm, professional cable protection accessories Series: Low noise series Length: Approx. 0.7meter / 2.3ft(detachable assembly of any length) Working Temperature: - 25 ~ 100 ℃ Model (inner height x inner width / mm)(approx.) Outer height x outer width / mm(approx.) Turning radius / R (mm)(approx.) Joint length / mm(approx.) Pitch / mm(approx.)   D20x25 35 x 39mm / 1.4 x 1.5in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 2in 33.5mm / 1.3in  D20x38 35 x 52mm / 1.4 x 2in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.10in 50mm / 3in 33.5mm / 1.4in  D20x50 35 x 64mm / 1.4 x 2.5in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 4in 33.5mm / 1.5in  D20x57 35 x 71mm / 1.4 x 2.8in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 5in 33.5mm / 1.6in  D20x67 35 x 74mm / 1.4 x 2.9in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 6in 33.5mm / 1.7in  D20x75 35 x 89mm / 1.4 x 3.5in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 7in 33.5mm / 1.8in  D20x77 35 x 91mm / 1.4 x 3.6in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 8in 33.5mm / 1.9in  D20x100 35 x 114mm / 1.4 x 4.5in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 9in 33.5mm / 1.10in  D20x125 35 x 139mm / 1.4 x 5.5in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 10in 33.5mm / 1.11in