Fuzzy Cluster of Corrosion Factors of Soil Environment for Petroleum Asphalt Coated Pipe
石油沥青涂层管线土壤环境腐蚀性因素的模糊聚类
The corrosion resistance and weatherability of color polyethylene coated steel pipe were investigated.
试验了彩色聚乙烯涂覆钢管得耐腐蚀性和耐气候性。
Study on the Properties of Ductile Iron Pipe Centrifugally Casted by Means of Resin Sand Coated Metal Mould
覆膜砂离心铸造球墨铸铁管性能的研究
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