ASTM D2047 用杰门机测量涂擦亮剂的地板表面的静态摩擦系数的试验方法ASTM D2047 Standard Test Method for Static Coefficient of Friction of Polish-Coated Flooring Surfaces as Measured by the James Machine中国防火网全国免费咨询电话:400-666-7290网址:www.firete.com邮箱:info@firete.com
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