Fiberglass, steel tapes and rules. Since its foundation in 1906, Yamayo Measuring Tools Co.,Ltd. has been specializing in the manufacture of measuring devices and is further making progress in enhancing an excellent reputation for technical innovation and leadership needed in our own field. Today, Yamayo is one of the biggest and leading manufacturers in our own field in Japan and has been recognized to place the JIS Mark (grade 1st) on each of our products according to the Japanese Industrial Standard specification stipulated by the Government. While high accuracy is required for measuring devices, our Shirakawa factory located in Fukushima Prefecture Japan, was undoubtedly designed and established for a good environment appropriate to the manufacture of high quality measuring tapes. Therefore, we recommend you the tapes manufactured by our up-to-date computerized printing machines.