Langfang Jingzheng Optoelectronic Technology Co., Ltd. (ENC7) manufactures custom optical encoder discs and code wheels in glass, metal and polycarbonate for rotary encoders and servo motors. ISO 9001 and ISO 14001 certified. Founded 2007. MOQ 100 pcs, lead time 5-7 business days. Standard products from about USD 1. Factory in Dachang High-Tech Zone, Langfang, Hebei, China. USCC 91131028667739890J. Materials: chrome-on-glass, etched metal, polycarbonate. Applications: incremental and absolute encoders, sin-cos discs, custom code wheels for OEM encoder makers worldwide.