HB 4-112-1983
活门用钢球的选择
1984-08-23
GOST 12248.7-2020
Грунты. Определение характеристик прочности и деформируемости мерзлых грунтов методом испытания шариковым штампом
土壤 用钢球冲压法测定冻土的强度和变形特性
ASTM E2863-17
Standard Practice for Acoustic Emission Examination of Welded Steel Sphere Pressure Vessels Using Thermal Pressurization
用热压加工焊接钢球压力容器的声发射检测标准实践
2017-06-01
UNE 36300-1980
SELECTION AND PREPARATION OF SAMPLES FOR THE DETERMINATION OF THE CHEMICAL COMPOSITION OF WROUGHT STEELS
锻钢化学成分测定用样品的选择和制备
1980-10-15
BS ISO 23825-2020
Method for evaluating the nodularity of spheroidal carbides. Steels for cold heading and cold extruding
球状碳化物球化度的评定方法 冷镦和冷挤压用钢
2021-01-08
KS D ISO 23825
구상 탄화물의 구상화율 평가방법 — 냉간 압조 및 냉간 압출용 강재
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2022-04-01
ASTM D7052/D7052M-17(2022)
Standard Test Method for Determining Impact Resistance of New Low Slope Roof Membranes Using Steel Balls (Z8295Z)
用钢球（Z8295Z）测定新型低坡屋顶膜抗冲击性的标准试验方法
2022-12-15