Type de certificatCertificatie van berekeningsprocessenBerekening U-frame: Schrijnwerk en vliesgevels (Construction Quality Recognised Scheme) Certificat CER-BPCB-420-13177-10077-2-12631-ENG-01_01_2022.pdf CER-BPCB-420-13177-10077-2-12631-FR-01_01_2022.pdf CER-BPCB-420-13177-10077-2-12631-NL-01_01_2022.pdf TRA BPCB 420 NL.pdf TRA BPCB 420 FR.pdf