TR-90 is made of thermoplastic polymer (Grilamid TR90), a polymer material with memory and the most popular ultra-light frame material in the world. It has high thermal stability and is an environmentally friendly material. PC refers to polycarbonate, which is lightweight, has good chemical resistance, has low raw material cost, and has strong plasticity. It can produce frames of various shapes, colors and textures to meet a variety of needs. Both have a certain degree of elasticity, excellent toughness and impact resistance, and can withstand the impact and pressure of daily use.
Acetate is a high-end material cut and processed from cellulose acetate. It is not easy to burn, is relatively light, and is almost not discolored by ultraviolet rays. It has relatively high hardness and good gloss. It has many choices of color and texture, which can meet different personalities and fashion needs.
Common metal frame materials include: alloy, pure titanium, titanium alloy, etc. Common alloy materials include Stainless Steel, white copper, Nickel Silver Alloy, Aluminum Alloy, Steel, etc. Among them, Stainless Steel, zinc-nickel copper and Nickel Silver Alloy materials have varying degrees of corrosion resistance. Zinc-nickel copper is often processed into various parts of eyeglass frames and children's eyeglass frames. Nickel Silver Alloy has good plasticity and can be made into various styles. Aluminum Alloy is as lightweight and economical as Stainless Steel. Steel eyeglasses are durable and comfortable to wear.
Titanium is a chemical element that is a transition metal. Its atomic number is 22 and its chemical symbol is Ti. Pure titanium refers to titanium materials containing more than 99% purity. Titanium alloys, commonly known as semi-titanium, are materials made by alloying titanium with other elements (such as aluminum, nickel, copper, etc.). Titanium is a lightweight material, lighter than many metals such as stainless steel, nickel silver, etc. High strength, excellent resistance to bending deformation, excellent corrosion resistance, anti-allergy, and comfortable to wear.
YINGCHANG GROUP began to specialize in R&D, production and sales of high-end AC acrylic, PC sun lenses, presbyopic lenses and other products in 2000. YINGCHANG has developed products with various specifications and complete colors, which are in line with international standards and are at the forefront of the industry. The products are loved by the market and sold to many places.
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