Concave convex mirrors factory

When evaluating mirrors from a factory, prioritize the curvature radius, which determines the field of view and image distortion. For convex mirrors, a wider angle (up to 160 degrees) is essential for blind spot visibility. Material selection is critical: Polycarbonate (PC) is preferred for its high impact resistance and shatterproof properties, while Acrylic (PMMA) offers superior optical clarity. For outdoor installations, ensure the backing is made of UV-stabilized ABS or stainless steel to prevent degradation from weather exposure.

Request the factory to provide reflectivity ratings, which should ideally be above 85% for clear visibility. Ask for salt spray test reports if the mirrors are intended for coastal or humid environments to ensure the silvering or vacuum coating doesn't peel. For safety mirrors, verify compliance with EN ISO 12100:2010 or similar safety standards. It is also advisable to check the thickness of the lens; industrial-grade mirrors typically feature a lens thickness of 2.0mm to 3.0mm to prevent warping over time.

A competent factory should offer OEM/ODM services, including custom diameters (ranging from 30cm to 120cm), specialized mounting brackets (wall-mount vs. pole-mount), and integrated features like sunshades or reinforced frames. For high-end applications, inquire about anti-fog coatings or heated lenses for cold climates. The ability to provide customized packaging for drop-shipping or retail-ready branding is also a key indicator of a mature supplier.

The biggest risk is breakage during transit. To mitigate this, insist on 5-layer corrugated export cartons with molded foam (EPS) or pearl cotton (EPE) edge protection. For LCL (Less than Container Load) shipments, mirrors must be palletized and shrink-wrapped to prevent shifting. Ensure the Incoterms are clearly defined; CIF or CIP are recommended for new buyers to ensure the goods are covered by marine insurance against damage or loss.

Focus on Volume-Based Pricing Tiers. Instead of just asking for the lowest price, negotiate a rebate structure based on annual purchase volume. Use Made-in-China.com's Secured Trading services to protect your payment until the goods pass a pre-shipment inspection (PSI). Always request a Golden Sample before mass production and include a clause in the contract that the bulk goods must match the sample's optical curvature and coating thickness.

Check the HS Code (typically 7009.92) for specific import duties in your country. Be aware of Anti-Dumping Duties that may apply to glass products in certain regions like the EU or USA. Ensure the factory provides a Certificate of Origin (CO) to take advantage of any Free Trade Agreements (FTAs) that could reduce your landed cost. Additionally, verify that the mounting hardware meets local building safety codes to avoid legal liabilities during installation.