Bolt Factory To Solve The Problem Of Bolt Rust
When brown rust spots (spots) appeared on the surface of stainless steel countersunk bracket bolts, people were greatly surprised: they thought that "stainless steel is not rusted, rust is not stainless steel, and there may be a problem with steel".  In fact, this is a one-sided wrong view of the lack of understanding of stainless steel.  Stainless steel will rust under normal...
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