Goldline popular tracing pad a3 product description goldline popular tracing pad 63gsm 50 sheets a3 ref gpt2a3z popular tracing pad all pads contain 50 sheets features tracing pad all pads contain 50 sheets general barcode 5019380450058 product family popular product type tracing pad identifiers ec commodity code 48201090 industry standard product classification 12173 physical form factor pad