用于漆和涂料，阻光特性和色度测量，测试图表类型22/4, 测试面积。500平方厘米
Hiding power
Model 451-22/4
Order number: 00491733-
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Hiding power
Model 451-22/4
测试卡用于检定任何类型染色涂料的阻光特性。
测试面积。500平方厘米，（每100件