热心网友
合格证书Certificate of Quality材质化验单Material Test Sheet材质证明Material Quality Certificate Cettificate of Qualification 和 Certificate of Competency 都是指（人的）资质证书，我想问者这里指的是材料。
热心网友
Certificate of QualificationAnalysis Sheet of Quality of Material
热心网友
合格证应该是Certification of Compliance或者Quality Certification
热心网友
Certificate of QualificationCertificate of Material Quality Analysis
热心网友
Certificate of competency 合格证书Material laboratory test report 材质化验单