What do the stress lines in enamel equipment look like?
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Enameled equipment must not have stress lines; what do stress lines look like? It would be great if there were photos! Thank you!
Which company makes enamel products? The pipe ends they produce are not good
Those with visible stress lines are defective products.
I’m too embarrassed to mention the manufacturer! We also feel that the quality is a bit poor!
What do stress lines look like? Hehe
That wire should be invisible to the naked eye; thermal stress, temperature changes, thermal expansion and contraction, processing stress, the drum, and internal stresses generated by welding
Simply put, there should be no sharp edges or lines.