Product Name: ASTM Heavy Prefab Steel frame Structure Fabrication Pre Engineered metal Structural Building Steel Workshop Model NO.: customized Application: Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, frame Part, Steel Walkway and Floor, Steel Structure Bridge Carbon Structural Steel: Q195 Type of Steel For Building Structure: High-Strength Steel Member: Steeltruss Connection Form: Bolt Connection Forming: Hot-Rolled Steel Trademark: Carbon Structural Steel Standard: GB, ASTM, DIN, JIS, AISI, BS Type: Light Section Steel Trademark: JR Transport Package: Main Steel Structure Components Will Be Packed in Specification: customized Origin: China HS Code: 9406900090 Product Description Specifications:1) Main Steel:Q345, Q235, Q345B, Q235B etc.2) Column & Beam:Welded or Hot rolled H-section3) Connection method of steel structure:welding connection or bolt connection4) Wall & Roof:EPS, Rockwool, PU sandwich, corrugated steel sheet5) Door:Rolled up door or Sliding door6) Window:Plastic steel or Aluminum alloy window7) Surface:Hot dip galvanized or painted8) Crane:5MT, 10MT, 15MT and more1. Are you a factory or trading company?our is a factory located in China.2. What's your delivery time?Normal order delivery time is 2-30 days after receive deposit.Big order delivery time should confirm with order management dept.3. What is your terms of payment ?30% deposit in advance, balance before shipment.4. Is it difficult to build a prefab house?Easy to install, installation video and guide book send to you showing how to fast installation.Or we can send engineer or installation team to construction site.5. Do you provide on-site installation service?Big projects provide installation services, Installation charge standard: 150USD/day, customer charge travel fee, accommodation, translation fee, and ensure staff's health and safety.