Email format error
Email cannot be empty
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6-20 characters(letters plus numbers only)
The password is inconsistent
Email format error
Email cannot be empty
Email does not exist
6-20 characters(letters plus numbers only)
The password is inconsistent
It's used to determine the abrasion characters of cloth paper paint, plywood.leather,tile. glass tubber etc.Having the specimen abraded by a pair of grinding wheels under the specified load, get the weight, of abrasion loss of it, which is the different weight of the specimen between before and after testing.