日期:2012-04-06 17:24
金属覆层 厚度 氢 钢 防腐蚀 覆层 紧固件 电镀 耐腐蚀性 厚度测量【英文主题词】 ELECTRODEPOSITION WOOD SCREWS THREADED FASTENERS COPPER ALLOYS MATERIALS ELECTRICAL CONNECTIONS THICKNESS ELECTRODEPOSITED COATINGS COATING THICKNESS GALVANIC SELF-TAPPING SCREWS GALVANIZATION THREADED COMPONENTS SPECIFICATION (APPROVAL) ELECTROPLATING METAL COATINGS STEELS MEASUREMENT DEFINITION THREADS CORROSION PROTECTION ORDER INDICATIONS COATINGS SCREWS (BOLTS) FASTENERS SPECIFICA