I. Wide span: Single span or multiple spans, the max span is over 70 m without middle column.
II. Low cost: Unit price range from USD45/sqm to USD80/sqm according to customers' request.
III. Fast construction and easy installation.
IV. Long using life: Up to 50 years.
V. Others: Environmental protection, stable structure, earthquake proofing, water proofing, and energy conserving.