腾树检测合作实验室具备 CMA/CNAS 双重资质,可依据 ISO8249:2018 提供全项检测服务
腾树检测可依据 ISO8249:2018《焊接奥氏体和成双铁素体奥氏体镍-铬(Cr-Ni)不锈钢焊接金属中铁素体数(FN)的测定Welding-Determination of Ferrite Number (FN) in Austenitic and Duplex Ferritic-Austenitic Cr-Ni Stainless Steel Weld Metals (Second Edition)》提供专业的第三方检测服务: