Prefabricated Steel Structure Warehouse Building and Construction Material Product Specifications Model Number KXD-SSB54 Color Reference Ral Engineering Team 20 Members Quality Control Daily Life Cycle 50 Years Construction Period 60 Days Customer Service Aftersale Service Project Management Turnkey Solution Engineering Tools Autocad Type H-Section Steel Standard GB Forming Hot-Rolled Steel Carbon Structural Steel Q235 Residential Wall Structure Wall Support Warranty 30 Year