Chemical composition of glass balls %: | |
SiQ2 | 67 |
Na2O | 16 |
CaO | 7 |
Al2O3 | 5 |
B2O3 | 3 |
MgO | 2 |
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 will use international express method, such as FEDEX,TNT,DHL,UPS or EMS etc.
2.If order is big, we will advise you use Air Freight or Sea Freight. It through your pointed forwarders freight. FOB port is Qingdao or Ningbo or Shanghai.
3.If you don't have your specified forwarders freight, we can find the cheapest forwarders freight to ship the goods to your point port.
4.The balance payment should be paid before delivery to you.