Metal Staircase suppliers Theory Igreats offers fully prefabricated spiral staircases that require no assembly. Treads, railings, spindles, and pole are welded together to form an extremely sturdy one-piece spiral stair that is shipped ready for installation. Specification itemvalue Warranty5 years After-sale ServiceOnline technical support, Onsite Installation, Onsite Training, Onsite Inspection, Free spare parts, Return and Replacement, Other ShapeStraight Stair Project Solution Capabilitygraphic design, total solution for projects, Cross Categories Consolidation, Others Applicationhotel/villa/apartment/mall/office/others Design StyleContemporary Place of OriginTianjin, China UsageIndoor Stair Materialsteel/carbon ApplicationHome House Product NameStraight Stairs ColorCustomized Colors ShapeStraight Shape InstallationEasy Install TypeIndoor Staircase SizeCustomized Size Packing and delivery For stair stringer: PE foam hard paper woven bag For treads: PE foam plywood box For balsutrade handrail rods:: PE foam hard paper woven bag For accessories: PE foam plywood box Package size: according to item sizes OEM Service We are specialized in producing all kinds of wrought iron products, including: Wrought iron gates, fence, railings, staircase, everything that makes your house pretty. You gave us a trust, we return you with good products. Our Services/Warranty 1.Pre-assembling at the factory before shipping. 2.Provide assembly drawing, and label the corresponding number on the products. 3.Provide assembly direction online at any time. 4.Different flower patterns available FAQ A. Trade Terms: US$FOB Tianjin/xingang port,China Or CIF destination port B. Minimum Order Quantity: 1 set. C. Payment Terms: 30% deposit and 70% balance before shipment, or 100% LC D. Assemble guidance is offered for free.Metal Staircase suppliers website:http://www.tjigt.com/wrought-iron-balustrade/metal-staircase/