JB/T 6954-1993 Quality inspection and rating of gray cast iron contact resistance heating quenching

This standard specifies the inspection and evaluation of the quality of contact resistance heating quenching of gray cast iron workpieces. This standard is applicable to situations where copper roller electrodes are used for contact heating quenching. Other electrode quenching quality inspections and ratings can also be implemented with reference. JB/T 6954-1993 Gray cast iron contact resistance heating quenching quality inspection and rating JB/T6954-1993 Standard download and decompression password: www.bzxz.net

J36 | |tt | | JB | | tt | 01
GR20P uxDEe/
GB4342
GB7216
GB7232
GB9439
3 pack
4.1 painting||tt| |4.2 bottles
4.3 bottleswww.bzxz.net
5.1 sides
5.1. 2 bottles
5.1.3 fish
GB9439 set|| tt||20% off
1993-07-27
3t cat
R||tt ||JB/T69541993
1.6~3.2mf
190HBS
3t bottle||tt| |2~4 wear
1994-07-01
JB/T69541993
1||tt ||14
JB/T69541993
JB/T 69541993
#2Qin||tt ||Honey
4% bottle
JB/T69541993
44| |tt||54
5.6 bottles
2| |tt||1
8||tt ||6.2 bottles
JB/T 69541993
100cm crazy
Division
. GB4342F
0.2mm Pro
100%|| tt||100%
JB/T69541993
Zhuxin
b(2R-b)
360× Ah
4100 milli
C||tt ||number
100 bottles||tt ||.
JB/T69541993
Teaching
Decoration
Zhanghuo District
Matrix
4% bottle
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