GB/T 19510.212-2023 Chinese PDF (GB/T19510.212-2023) GB/T 16702.2-2025 monoculars and spotting scopes -

monoculars and spotting scopes - Part 1: General purpose instruments (Chinese: 光学和光子学 双筒望远镜、单筒望远镜和观测镜规范 第1部分：普通性能仪器)

English versions: GB/T 11880-2024

GB/T 4740-2024_Chinese: Test method for strength of ceramic materials (Chinese: 陶瓷材料强度试验方法)

English versions: GB/T 45141-2025

GB/T 10067

GB/T 19510.212-2023 Chinese PDF (GB/T19510.212-2023) GB/T 16702.2-2025 monoculars and spotting scopes -GB T 19510. 212 2023_Chinese: Controlgear for electric light sources Part 2 12: Particular requirements for d. c. or a. c. supplied electronic ballasts for discharge lamps(excluding fluorescent lamps) (Chinese: 2 12) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19510. 212 2023