Inquiry (采购产品): Fresnel lens Please provide following information. 600 mm Dia. Focal length 200mm closest groove pitch and corresponding resolving power in line pairs /mm of the image formed if available. Material of the lens. price per unit and minimum order accepted. **** Hidden Message ***** Achuthan Menon M21Sakthinagar Irinjalakuda680125 IND Company: "Surabhi" Title: Consultant Phone: 91-480- 2822791 E-mail: vamenon2084@gmail.com **** Hidden Message ***** vamenon2084@gmail.com
