Dear Khun Ying,
Thanks for your supply copper to us.
I would like to inform to you some problem of copper as;
1). Please see attach photo of TC 0.615 . In this time our production line has find out some of tin coated is not good and also one bobbin has tin coated diameter very small which is not so much length, I send back to you today sample for your QC reviewing.
I do not reject this lot because we need to use and our line cut off the area of problem, it it caused production take time and care for defect.
2). TC/S 11/0.160 : During production some bobbin of around end of bobbin which break copper and can not find the twist start point and also one bobbin has twisted not good, I arrange send back today today defect 33.26 KG < 5 bobbin, one bobbin has old lot>. Please be inform to your QC and care for twisting process.
I would like to thank for your many support to us but also could you please inform your QC during this period there has some quality problem happen again.
If you have any question please let me know.
Best regards,
Thomas Siao