optical glass
airport prism
airfield prism
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram,Paypal; Height: 39.9mm; Color: clear; Surface Quality: 60/40; Process: molding, pressing, polishing; Length: 54.6mm; Structure: plano convex, plano-convex; Model Number: BO-WL04; Item Name: Optical glass; Width: 34.8mm; Material: borosilicate...