7013.42.00.00Of glass having a linear coefficient of expansion not exceding 5 x 10-6 per Kelvin within a temperature range of 0°C to 300°C

Classify a whole shipment, not one line at a time.

Adhoc's agent assigns HS codes with the ruling chain cited, checks AIRS and PGA requirements, and drafts the CBSA declaration for your broker to review.