文件名称
大小更新日期
[国外标准] ASTM D2797_D2797M-20 Standard Practice for Preparing Coal Samples for Microscopical Analysis by Re
4.92 MB2022-05-24
[国外标准] ASTM D2672-20e1 Standard Specification for Joints for IPS PVC Pipe Using Solvent Cement
4.62 MB2022-05-24
[国外标准] ASTM D2439-20 Standard Specification for Refined Phenol
1.72 MB2022-05-24
[国外标准] ASTM D2339-20 Standard Test Method for Strength Properties of Adhesives in Two-Ply Wood Constructi
3.31 MB2022-05-24
[国外标准] ASTM D2265-20 Standard Test Method for Dropping Point of Lubricating Grease Over Wide Temperature
5.4 MB2022-05-24
[国外标准] ASTM D2234_D2234M-20 Standard Practice for Collection of a Gross Sample of Coal
8.44 MB2022-05-24
[国外标准] API STD 20L-2018 Qualification of Polymeric Seal Manufacturers for Use in the Petroleum and Natural
6.87 MB2022-05-24
[国外标准] API SPEC 20F-2018 Corrosion-resistant Bolting for Use in the Petroleum and Natural Gas Industries (S
11.25 MB2022-05-24
[国外标准] AATCC 20A-2020 Test Method for Fiber Analysis_ Quantitative
8.31 MB2022-05-24
19.85 MB2022-04-15
28.64 MB2022-04-14
54.18 MB2022-04-07
56.15 MB2022-04-07
62.99 MB2022-04-06
536.2 KB2022-03-30
10.35 MB2022-03-25
96.7 MB2022-03-25
90.38 MB2022-03-25
28.98 MB2022-03-11
23.44 MB2022-03-10
22.99 MB2022-03-10
25.59 MB2022-03-10
22.09 MB2022-03-09
2.34 MB2022-03-07