Our Company was found in 1986, which is specialized at hetero-hardware in the Shandong Province. Our major provides are high-strength, and omnigenous improper standard fastenings for agricultural machines, general petrochemicals, railways, freeway bridges, construction machines and electrical communication industries. We also can process and manufacture the products according to customer needs, which adopts high quality carbon steel and synthetic steel to all kinds the products. Quality control has been stabilized and reliable by our advanced technology, sophisticated apparatuses and ideal test procedures. The machine-performing standard is between level 4.8 ~ 10.9, and accuracy is above 6H.
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From 1958 onward, and as the city became more industrialized in the 1960s, the polluted stream and its Bridges were gradually buried under at-grade asphalt and a four-lane elevated freeway.
自1958年来，20世纪60年代城市工业化程度日益提高，污染的运河和桥梁逐渐被柏油马路和4车道的高架高速公路替代。
Side wind effects on driving safety were investigated for long-span Bridges in strong wind based on comprehensive management of freeway.
针对高速公路综合管理需求，研究强风天气的大跨度桥梁行车安全性问题。
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