I have checked internally and we agree to mark in 2 sides. 
However, regarding machining parts (hsg brake and cover sleeve), we completed packaging and mark only in one side. Therefore, I am writing to ask if in shipment from Hal VN on 9th May, arriving at Hal TL on 19th May, we still mark in one side, but put the marked face outwards, so that youy forklift driver can see part number immediately while unloading.
From shipment from Hal VN on 16th May, arriving at Hal TL on 26th May, we will mark 2 sides as