Manual section telescopic stairs: ??? 1, high-profile luxury models: ????? this paragraph as a whole staircase made of high strength cold-rolled steel stamping. ????? Stepping width 10CM, Length 40CM. GB stepping thickness 1.0MM. ????? S bend thickness GB 2.0MM. Anquan Cheng weight up to 260 kg or more. ??? 2, high-profile money :( strengthen new) ????? overall this paragraph stairs made of high strength cold-rolled steel stamping. ????? Stepping width 13CM, Length 40,45,50MM (according to the hole width) ????? stepping thickness GB 1.5MM. S bend thickness GB 2.0MM. Anquan Cheng ????? weight up to 300 kg or more. Is the high cost of style. ??? 3, paragraph :( new titanium alloy) of this paragraph stairs ????? S bend is rounded shape of the surface smooth and delicate, S ???? ????? bend is made of high strength titanium alloy production , stepping surface is flat pattern ribbed shape, ??? ????? net electric high quality titanium alloy die-casting, stepping long 380mm wide and 110mm? ????? every high level within 210-250mm, surface using spray. Safety ????? ????? 300 kg load more. Retractable stairs sticks explain a staircase made of high strength cold-rolled carbon steel. ? 2, steel frame, powder coated, high-temperature baking surface treatment 3, metal pieces by Ryoka, electrostatic spray, hot baking surface treatment, timeless. 4, beautiful and practical, easy to operate, easy to install. Is an alternative fixed stairs, saving the best choice of interior space. First, retractable attic stairs ??? uses mainly for small attic space, shops, etc., connected to the main channel bottom. Second, the attic stairs telescopic type, now I introduced House stairways manual type, electric type two colors black and white points, all white, orange white, blue and white combination of four. Where the manual models, sub-normal models and luxury models, upgraded models, the manual operation shall only use the downstairs, electric type using domestic motor, wireless remote control, automatic folding and collapsed. Upstairs Downstairs electric models can operate with a remote control. Third, the attic stairs and space for the story you have any requirements: 1. The highest floors do 3200mm. 2. When you open staircase basic size requirements: 1200mm - 1800mm, floor span size of about 1300mm - 1500mm, retractable stairs sticks illustrate a staircase made of high strength cold-rolled carbon steel. ? 2, steel frame, powder coated, high-temperature baking surface treatment 3, metal pieces by Ryoka, electrostatic spray, hot baking surface treatment, timeless. 4, beautiful and practical, easy to operate, easy to install. Is an alternative fixed stairs, saving the best choice of interior space. First, retractable attic stairs ??? uses mainly for small attic space, shops, etc., connected to the main channel bottom. Second, the attic stairs telescopic type, now I introduced House stairways manual type, electric type two colors black and white points, all white, orange white, blue and white combination of four. Where the manual models, sub-normal models and luxury models, upgraded models, the manual operation shall only use the downstairs, electric type using domestic motor, wireless remote control, automatic folding and collapsed. Upstairs Downstairs electric models can operate with a remote control. Third, the attic stairs and space for the story you have any requirements: 1. The highest floors do 3200mm. 2. When you open staircase basic size requirements: 1200mm - 1800mm, floor span size of about 1300mm - 1500mm Automatic telescopic stairs technical parameters 1, the automatic retractable staircase type of operation are: remote control + switch + manual; 2, automatic type Retractable stairs to increase the use of electric putter and two hydraulic levers to control the door, so easily and automatically opening and closing the door; at the same time putting on the electric motor has a self-locking function, does not make the door fell; but also manual functions, After a power outage that can be manually; 3, there are two limit switches, limit position to achieve, not the motor burned; the length and angle of the limit switch lever can be adjusted; 4, using high-quality carbon steel staircase Q235B, thickness is 1.5mm steel time stamping; stamping striped top and bumps, so that you can slip; they can improve the strength of stepping, can withstand 680 pounds maximum weight of 5, using high-quality carbon steel curved staircase S Q235B,. thickness of 2mm steel plate once stamping, punching above have ribs. 6, mouth floor plate frame made of high quality carbon steel Q235B; thickness is 1.5mm steel plate, after stamping and welding molding. 7, stairs two S bend the hinges, solid 304 stainless steel rivets, rivet machines imported from Germany, riveting, riveting high quality, good concentricity, walking more stable, completely overcome the poor stability of similar products and shaking ills. 8, stairs screws and bolts on a 304 stainless steel. 9, with thick reinforced corners fixed platen plate 10 three-panel, door panels produced using the finest pine, pressed down 9mm thick sticky white paint the board, total thick 36mm;. Insulation, good special effects. 11, foot of the stairs with a polyurethane using industrial materials, has good elasticity, will not scratch the surface. 12, the lower part of the staircase is equipped with plastic rollers, steel stairs and doors to avoid collisions. 13, all steel parts by hydrochloric acid pickling rust, electrostatic spray, high-temperature baking surface treatment, timeless. 14, stretching back to the stairs, the motor has a self-locking function to prevent sagging door himself. 15, stair height adjustable stepping in a certain range to accommodate high floor; The stairs at 3.5m below floor level. 16, all parts of the stairs with a standardized, modular design, any parts are common. 17, this space-saving staircase, beautiful and practical, easy to operate, easy to install, safe and reliable. 18, this is widely used in the attic stairs, villas, shops. Retractable stairs to the attic entrance requirements to install an attic hole size requirements ?? (rather large not small) ??????? hole sizes:? 1200 * 1000 * 700 ?? 700 ?? 900 * 700. When leaving the hole, please try to size construction master stay. 1 ,? error is inevitable, the hole than specified in the contract at this time can be slightly larger than 5mm. That is rather large not small. ?????? 2, note: the hole shall be equal to the diagonal corners. Which is to ensure the four corners 90 degree angle. Second,? Attic wall hole distance of not less than 5 cm. 1 ,? stairway door because there flanging, similar room door pockets, so there must be a distance of not less than 50mm between the hole and the wall. ???? 2 ,? if there plaster corner, away from the edge of the hole edge of the plaster line shall have not less than the distance of 50mm. ???? Under three ,? along the hole around do not have any decorations, such as plaster, etc., to keep the hole in the underside of the ceiling of a horizontal plane. Third,? Different materials ?? attic hole (the hole is surrounded by flat, to ensure there is the focal point drilling screws) 1, if the hole with a square steel making the best, are surrounded by flat, drilling screws have focus. 2 ,? if the hole using the channel? (? U-shaped or C-shaped steel steel?)? Production, channel plane should be facing outward, that the hole is surrounded by plane. ???? If the opening outwards, that C word of mouth outwards, you need to re-welded steel in the mouth, in order to ensure drilling wire has focus. 3. If you use the "I" word of steel (or H-shaped steel) production, the need to re-welded steel in the mouth, in order to ensure that the hole is surrounded by a flat, drilling wire has focus. 4, square steel (or channel or "work" word steel) along the horizontal distance from the ceiling inside of 8cm. That ??? 8cm up at the ceiling underside screws can play, do not be empty. NOTE: After the completion of the hole soldering medial sides of the hole is best not to pack Blockboard or gypsum board, the steel directly exposed. Fourth, the slab thickness (distance between the bottom surface of the ceiling between the attic floor) in the 13cm-25cm ???? stairs after stretching and stretching process, depending on the height of floors, takes about 180cm.