copper tube with flared mouth and tapered mouth, welding H59 H65 precision size hollow copper tube, cutting, polishing and grinding

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• copper tube with flared mouth and tapered mouth, welding H59 H65 precision size hollow copper tube, cutting, polishing and grinding
• Product description：copper tube with flared mouth and tapered mouth, welding H59 H65 precision size hollow copper tube, cutting, polishing and grinding
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