Detailed product description 1.Our product follow the standard: iso7465 2.We can supply kinds of elevator guide rails as follows: T45/a:45*45* 5mm T50/a:50*50*5mm T70-1/b:70*65*9mm T75-3/b:75*62*10mm T78/b:78*56*10mm T82/b:82.5*68.25*9mm T89/b:89*62*15.88mm T90/b:90*75*16mm T114/b:114*89*16mm T127-2/b:127*88.9*15.88mm Tk5:87*60*16.4mm Tk5a:78*60*16.4mm. 3.We also can process non-standard products with the references to the customer' s requirements. Material performance Steel yield strength N/mm2 tensile strength N/mm2 elongation hb Chemical composition. Standard:10bars per bundle with key and key-way caps for exported good:covered with anti-rusty paper besides the standard packing spesial:according to custermers' requirements.