Maintenance of breakdown of sclerometer of the family name in HLN-11A/TH140/TH160 is simple talk
Primary failure of sclerometer of the family name in HLN-11A/TH140/TH160 behaves:
1 demonstrates HL rigidity, hardness cannot show Buluowei
Tower above of HRC of 2 hardness on the high side is worth 3 times
3 probe cannot identify
4 measure on the low side of hardness of cloth family name
5 measure workpiece not to demonstrate rigidity
6 cannot charge, bide one's time time is short
7 hardness are hit breathe out halloo low not stable
8 liquid crystal break a code
Above reason can be solved by oneself.
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