... 1) Wide Blades coated with two coats of Nylon to help resist rust, breakage and to ... provide long-life. 2) 3 times recovery speed Nylon coating steel tape, corrosion resistance, prevent oil, acid ... , wear-resisting, service life is double than domestic nylon coating steel tape, 3 times than domestic steel tape ... . Recovery speed is faster than feet ruler more than 3 times, and so easy ...