日本三豐粗糙度儀，對工作部位粗糙度進行檢測，達到積康出廠標準，光學產品粗糙度，我們已經達到RA：0.07μm，恒定的品質，是產品生產穩(wěn)定的重要因素

Japanese Mitoyo roughmeter, test the roughness to achieve Gillkon standard. We already achieve to make the products roughness to be RA：0.07μm, stable qualtiy is important factor for products.