American and Canadian SEI certification
This certification is required for the American and Canadian markets and is recognised the world over. The SEI marking ensures, by means of continuous inspections that are also undertaken within the company, that the certified products are always and consistently in conformity with the type-approvals to which the certification refers, i.e. the ASTM F1163/2015 standard. In this way, they guarantee the highest quality of manufacture and traceability of the products.