304 stainless steel tube precision pipe Outer diameter 18mm wall thick 0.5 1 1.5 2 3mm inner 17 16 15 14mm tolerance 0.05mm

304 stainless steel tube precision pipe Outer diameter 18mm wall thick 0.5 1 1.5 2 3mm inner 17 16 15 14mm tolerance 0.05mm

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