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ASTME B型，C型，R型试片
试板（ASTME709 20，8，3）用于触头，磁轭测试系统的测试，ASTME709为电火花刻槽
Product:Test plece of magnetic pardcles
Type:C
Test quallty:sample
Qnantity:3pieces
Test Standard:ASTME709 20.8.3
inspection iterms:The condiyion, method demand of the test
Colour:Metal surface presents bright silver no rust no scatch no corrnsion and so on
Planeness:Put test piece on bare board parallel compley no wrinkle no burts the surface,s roughness RA is 0.006in
The sizc of sheetiron and culting groove:The side length of test piece tested by milscale is 0.75in *0.75in The
average thickness of test picece C
IS0.002in The artificial deiect symbol tested by precision microsope are both on the center of the test piece The
diameter of symbol is 0.5in
The thickness of test piece C is 0.002in the groove depth is 0.0006in the groove width is 0.005in
Quailty:the PHYSICS and chemistry test show the result that the metal is made from 1005 sl park electromagnetic
pure ironplate
The analytic resut of raw materiais accords with the rule of GB6985
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¥480