GB/T 6170 hex nut abbreviation: GB6170 hex nut; GB/T 6175 hex nut hereinafter referred to as GB6175 hex nut. First of all, let’s take a look at the full name of the standard: GB/T 6170-2000 type 1 hex nuts (replaced by GB/T 6170-2015) GB/T 6175-2000 type 2 hex nuts (replaced by GB/T 6175-2016) Here is…
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