3R-1-48-4R规格参数
相关型号
3R1500H 3R-1-60-3R 3R-1-60-4R 3R1630H 3R-1-6-3R 3R-1-6-4R 3R-16-BHGP 3R-16-NGP 3R177602G 3R177669GY