... )0086-13869829462(China) steel warehouse construction , steel structure pre-engineering steel structure building, steel structure warehouse & workshop pre-engineered ... 4. Long using life: up to 50 years.5. Others: environmental protection, stable structure, earthquake proofing, water proofing, and energy ... , Unit B, Zhonghui Commercial Building,Qingdao,266000,China pre-engineering warehouse building