The Spring Road bridge Replacement Project in Central Pennsylvania replaced a deteriorating 188-foot steel plate bridge, originally constructed in 1930.
宾夕法尼亚州中部的斯普林路大桥更换项目取代了最初在1930年建成，日益恶化的188英尺长钢板桥。
Experimental research has been made on clamping constraint of two pieces steel plate spring for automobiles.
对汽车用两片钢板弹簧的紧固约束进行了试验研究。
Stainless steel, 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。
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