KOYO strictly implement European Standard EN115 and was awared Germany TUV Certificate with CE Logo. KOYO escalator has many superiorities as follows: - Step rollers and chain rollers are made of Germany Bell materials which is the best material for rollers at present because such material is rigid and anti-aging. - Steps are Die-cast aluminum which is thick and endurable - The inner and outer decking is SST304 1.5mm.- Escalator chain connection panel is 5mm 40RAMN alloy steel which is rigid and bearable.- Control box is anti-fire design and the protection rank is up to IP55, but only IP21 in China.- Step guide rail is made of hollow section steel which is strong and with high precision. There is chimb on each side so the step roller would be kept and will not change direction. In this way, there would be little noise. - Truss is made of special angle iron which is specially welded; it is not the same case in China.- Escalator flooring panel is made from anti-sliding stainless steel so it would be very safe for passengers.- Handrail height is 1000mm which is much safer, but only 900mm in China.- The installation of front panel can be adjusted to be at the same level with the floor.