The United States will be carried out mandatory produce GB to sign regulation of
...
 Author:Stand originallyhits:1 Comments:0 Read more...
Mobile pencil uses regulation of classification of quality of core of Chinese in
...
 Author:Stand originallyhits:1 Comments:0 Read more...
Ball-pen and level of pen core state (discussion draft)
7 experiments method 7. 1 book writes function test Write property: Place pointing to a pen underlines mark not to appear inside formulary length become weak, break a string or do not delimit the performance that give....
 Author:Stand originallyhits:2 Comments:0 Read more...
Mobile pencil uses graphite core occupation standard
This standard consults use international standard ISO 9177-2 " mobile pencil, the 2nd part: Classification of black lead core and dimension " . 1 theme content and suitable scope Method of requirement of the classification...
 Author:Stand originallyhits:4 Comments:0 Read more...
Regulation of classification of quality of pencil of pulsatile type activity
Grade of quality of pencil of activity of 1 pulsatile type The classify of pencil of pulsatile type activity that 1.1 method are 0.5mm and 0.5mm above to core diameter norms only. By its quality is divided in all...
 Author:Stand originallyhits:1 Comments:0 Read more...
Regulation of classification of blue black quality
...
 Author:Stand originallyhits:2 Comments:0 Read more...
Fountain pen occupation standard
[Hui Cong manages network of general articles for use] This level is comfortable the tap water of the liquid ink that is pigment at having dye of water-solubility of harbour lay aside and device of metallic pen point. 1 c...
 Author:Stand originallyhits:3 Comments:0 Read more...
Mobile pencil occupation standard
This standard of   of QB 1023-91 of pencil of activity of occupation standard of People's Republic of China consults use 917 7 of   of international standard ISO, 1 " mobile pencil, the first: Classification, dimension, function...
 Author:Stand originallyhits:4 Comments:0 Read more...