安全阀门锁

Material: ABS : 1-2/2 (25mm-63mm) 2/2-5(63mm-127mm) 5-6/2(127mm-165mm) 6/2-10(165mm-254mm) 10-13 (254mm-330mm) Color schemes:You can choose from four colors: red, yellow, blue and green. There the different ways to use these colors. First; use red to indicate power off, and green for power on, secondly; use the ANSI-designated color scheme, use blue for low hazard gas, green for low hazard liquid, and yellow for life or property hazards. Purpose: Safe, inexpensive way to secure valves.