Lentille optique de téléobjectif Dia luminaire, objectif Concave simple plat de 12mm et 39mm, équipement de verre optique revêtu AR, 40/20, prix d'usine
17mm optical glass BK7 collimating collimator small flat biconvex lens: we have all kinds of package size you can choose and we can customize the package according to your request. Inner packing-------special protective packing for optical products. Outer packing------carton, Shock absorption material and bubble wrap