Various styles staircase features: 1, Luxury semi-automatic models material: S bend using 2.0mm thick high strength GB of high-quality steel plate stamping, the surface smooth and delicate, rounded shape, still with 1.5mm thick high quality steel strength GB surface flat pattern shape; stepping length 400mm, width 100mm, high level within each 250mm, surface and borders are steel, the surface net electrical spray. Door: width 90mm, 24mm thick wood made into a mesh-shaped multilayered wood frame, foam padding inside the empty, white paint plate 5mm thick stick up and down, the total thickness of door 34mm, PVC edging. Door surface do not see signs of mounting screws. Configuration: used to increase fixed triangular piece special hinges instead of conventional hinges, equipped with self-closing devices, two hydraulic rod, two springs, when closed, gently push up, the door automatically shut contraction. Maximum safe carrying capacity of 230 kg, the product warranty decade, including this staircase that is easy to use, lightweight, safe and beautiful. 2. Luxury manually upgrade section: material: S bend using 2.0mm thick high strength GB high-quality steel stamping, surface smooth and delicate, rounded shape, still with 1.5mm thick high strength GB of high-quality steel, the surface is flat pattern like; stepping length 400mm, width 100mm, high level within each 250mm, surface and borders are steel, the surface net electrical spray. Door: width 90mm, 24mm thick wood made into a mesh-shaped multilayered wood frame, foam padding inside the empty, white paint plate 5mm thick stick up and down, the total thickness of door 34mm, PVC edging. Door surface do not see signs of mounting screws. Configuration: used to increase fixed triangular piece special hinges instead of conventional hinges, reducing the power of manually operated door switch process can be stopped at any angle unit, four hydraulic rod. Maximum safe carrying capacity of 230 kg, the product warranty decade, including this staircase that is easy to use, lightweight, safe and beautiful. 3, luxury manual models material: S bend using 2.0mm thick high strength GB of high-quality steel plate stamping, the surface smooth and delicate, rounded shape, still with 1.5mm thick high strength GB of high-quality steel, the surface is flat pattern shape; stepping length 400mm, width 100mm, high level within each 250mm, surfaces and borders are steel, the surface net electrical spray. Door: 1.8mm thick high strength MDF, fixing screws through the door, the door surface can be seen traces of screws. Configuration: Fixed traditional hinge, two hydraulic rod configuration, two springs, the maximum safe carrying capacity of 230 kg, the product warranty decade. 4, general manual section material: S curve with 1.5mm thick high strength GB of high-quality steel plate stamping, the surface smooth and delicate, rectangular shape, still using 1.2mm thick high strength GB of high-quality steel, the surface is horizontal striped convex surface; stepping length 400mm, width 100mm, high level within each 250mm, surfaces and borders are steel, the surface net electrical spray. Door: 18mm MDF high-strength, screw-penetrating installation, door surfaces saw traces of mounting screws. Configuration: Fixed traditional hinge, two hydraulic rod configuration, two springs, the maximum safe carrying capacity of 150 kg, the product warranty decade. Can only be operated manually staircase downstairs. 5, luxury electric models material: S bend using 2.0mm thick high strength GB of high-quality steel plate stamping, the surface smooth and delicate, rounded shape, still using 2.0mm thick high strength GB of high-quality steel, the surface is flat pattern shape; stepping length 400mm, width 100mm, high level within each 250mm, surfaces and borders are steel, the surface net electrical spray. Door: width 90mm, 24mm thick wood made into a mesh-shaped multilayered wood frame, foam padding inside the empty, white paint plate 5mm thick stick up and down, the total thickness of door 34mm, PVC edging. Door surface do not see signs of mounting screws. When attic stairs telescopic installation requires the installation of the thickness of the wall of the attic stairs, floor thickness should be 170mm, connecting stairs bracket with screw plate caught with four corners; a frame mounting holes and tighten the screws, cut off the excess wire head cover decorative plates, retractable stairs to check whether the various parts are loose, such as normal, can be used. If less than 170mm, should underlay board platen; if the floor particularly thick, The conditions permitting, use the following methods: floor length direction than in the longitudinal direction of the entrance stairs extend 200mm opening, extending sealed section below, do the middle floor first-order transition stepping; Note: design floor near the corner of the mouth, the edge of the hole to set aside more than 100mm from the wall to prevent the attic stairs bracket flange collision, the impact of the installation.