3R-2-12-3R规格参数
相关型号
3R-2-12-4R 3R-2-18-3R 3R-2-18-4R 3R2228G 3R-2-230-3R 3R-2-230-4R 3R-2-24-3R 3R-2-24-4R 3R230A-5S 3R230AL2