Dear Sir,Bottle neck drawings are ok with the follwing exception.- The internal bore profile must not be in “V” shape, this helps the insert to be pushed out.- We use to ask that internal diameter at 2mm height to be máximum 0,2mm higher that diameter at 10mm. The ideal is diameter at 2mm lower than diameter at 10mm (“A” shape) Should you need further assistance, please re-contact. My Technical colleagues are copied in this email. Best regards
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