Chemical composition of glass balls %:
1.Glass bead, high strength, high membership, very few impurities
2.Colorless, transparent, solid high strength, low wear and chemical stability
3.Accuracy error < 0.02mm
It will takes about 20days if by sea, It will takes about 5-7days if by air,By DHL,UPS,FEDEX,TNT,It will takes about 4-6 working days except festival and holiday.
1.If the quantity of order is not very big, we ...