Residential Sectional Garage Door
A typical version of an overhead garage door used in the past would have been built as a one-piece panel.The panel was mounted on each side with unequal parallelogram style hinge lifting mechanism. Newer versions of overhead garage doors are now generally built from several panels hinged together that roll along a system of tracks guided by rollers. The door is balanced by either a torsion spring system or a pair of extension springs.A remote controlled motorized mechanism for opening garage doors adds convenience, safety, and security
• Aluminum garage doors are low-cost, light, rust-proof, and feature low-maintenance. They are prone to denting because aluminum is not strong and they are energy-inefficient since aluminum is a highly conductivematerial.
• Fiberglass and vinyl garage doors are composite units, combining a steel core behind a fiberglass or vinyl skin. They have also polyurethane insulated base sections, or other type of foam insulation. These premium doors can match steel garage doors, and be a realistic imitation of wood (namely fiberglass units), but they may be more expensive than steel units.
• Steel doors have become common and are available in a variety of sizes and styles, provide strength and security, are cost-competitive, and may have optional insulating value. Extra strength is available with two or three layers of galvanized steel with a low gauge number (23-24 gauge steel panels).
• Wood garage doors offer aesthetic appeal, but they are high-maintenance and may be expensive. Low-priced wood garage doors may warp and break easily.
Name of product specification Materials Steel factory / origin Price (yuan/ton) Than yesterday Compared to last week Than last month I-beam 36#/b Q235 Lai Gang 3830 0 0 230 I-beam 40#/b Q235 Lai Gang 3830 0 0 200 Channel steel 16#a Q235 Ma Gang 3600 0 0 220 Channel steel 25# Q235 Ma Gang 3600 0 0 280 Angle Steel 50*50*5mm Q235 Tong Gang 3520 0 0 170 Angle Steel 50*50*5mm Q235 Ma Gang 3580 0 0 230 Galvanized coil 0.6mm*1000*C ST02Z Bengang 5700 0 0 -50 ll 0.7mm*1250*C ST02Z Bengang 5500 0 0 -100 ll 0.8mm*1000*C ST02Z Angang 5450 0 0 -150 ll 1.0mm*1250*C ST02Z Angang 5350 0 0 -150 ll 0.5mm*1250*C DC51D+Z Ma Gang 5700 0 0 0 ll 1.0mm*1250*C DC51D+Z Ma Gang 5300 0 0 0 Color coated roll 0.40mm*1000*C SGCC Huangshi Dongshan 6830 0 0 0 Color coated roll 0.45mm*1000*C SGCC Huangshi Dongshan 6720 0 0 0 Color coated roll 0.50mm*1000*C SGCC Huangshi Dongshan 6550 0 0 0 Color coated roll 0.426mm*1000*C CGCC Suzhou Xunxing 6600 0 0 0 Color coated roll 0.476mm*1000*C CGCC Suzhou Xunxing 6500 0 0 0
Residential Sectional Garage Door,Automatic Metal Sectional Garage Door,Standard Lift Garage Door Drum,Polyurethane Foam Garage Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.highspeedshutterdoor.com