*Meet the China national standard GB5237.6-2004 and Europe standard PrEN14024 and American Standard AAMA TIR-A8-90*Device with strip thermal barrier production system manufactured by Switzerland and thermal barrier strip supplied by Technoform company, Germany* Device with poured and debridged thermal barrier production system manufactured by Akzon and thermal barrier polyurethane poured materials supplied by Akzon company, U. S. A*With enough mechanical strength, thermal barrier profiles have perfect thermal barrier, voice insulation and low energy cost properties*Supply: Strip thermal barrier aluminum profiles, poured and debridged thermal barrier aluminum profiles