Based on engineering practice, discusses some characteristics of air conditioning design in large space buildings with lights teel frames.
结合工程实践，探讨了大空间建筑空调设计的一些特点。
Stainle teel, carbon steel, alloy steel, spring steel, Aluminum alloy, copper plate, Aluminum plate, gold, silver, Titanium, other metal plates and metal pipes.
不锈钢、碳钢、合金钢、弹簧钢、铝合金、铜板、铝板、金、银、钛等金属板材及管材。
Teel the customer that a change will be coming.
告诉客户，将要发生变更。
Teel the customer that a change will be coming.
告诉客户，将要发生变更。
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