Caractéristiques:

• warmming: before pay pls contact with me
• Utiliser: optical instruments
• thickness: 0.3-50mm
• tempered: depend your choice
• Taille: upon your request
• surface: 40/20
• surface: no bubbles and hairlines
• shape: round or square
• polishing: both two sides
• Numéro de Modèle: B270
• Matériau: optical glass B270
• material: import B270 germany
• edge: protection chamfer
• color: clear