بهترین پس از فروش astm a967 جذابیت زیبایی شناختی
ASTM A967-05.chemical passivation treatments : Designation: A 967 – 05 e1Standard Specif i cation forChemical Passivation Treatments for Stainless Steel Parts 1This standard is issued under the f i xed designation A 967; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the ...