304 316 Stainless Steel Metal (inexpensive detection liquid) Test Kit : Climbing bolts & hardware
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ステンレス鋼は磁性を持ちますか?
Testing 304 and 316 with simple Magnet test!
Stainless Steel Grades Explained
304 vs 316 Stainless Steel
SS 304 vs SS 316 stainless steel #industrial #fabrication
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