Yejia Optical Technology ( Guangdong) Corporation is based in China and lists products on Global Trade Plaza including Water Bottle Valve and Silicone Optical Lens. The Water Bottle Valve is described as engineered for durability and ease of use, providing performance for various bottle types. The Silicone Optical Lens is made from Optical Liquid Silicone, produced in a Class 100,000 Clean Production Workshop, with certifications including IATF16949, ISO9001, ISO13485, and ISO14001, using LSR Injection Molding process, and featuring a Model YJ-1001, 94% Light Transmittance, Temperature Resistance from -40 to 150 Degrees Celsius, and Hardness of 72 Shore A. Buyers can send an enquiry through Global Trade Plaza.