structure steel building steel construction workshop suppliers

1. Wide span: Single span or multiple spans, the max span is 36m without middle column. 2. Low cost: Unit price range from USD35/m2 to USD70/m2 according to customers request. 3. Fast construction and easy installation. 4. Long using life: Up to 50 years. 5. Others: Environmental protection, stable structure, earthquake proofing, water proofing, and energy conserving.