吊顶用石膏构件|沙特标准|SASO-GSO-EN-14246
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吊顶用石膏构件|沙特标准|SASO-GSO-EN-14246
SASO-GSO-EN-14246
Gypsum elements for suspended ceilings - Definitions, requirements and test methods
吊顶用石膏构件.定义,要求和试验方法
SASO-GSO-EN-14246
Gypsum elements for suspended ceilings - Definitions, requirements and test methods
吊顶用石膏构件.定义,要求和试验方法
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