接触转速表DT2856 上海临嘉科教仪器有限公司

p1Src=//y1shangxu.yzimgs.com/uploads//20240703-32091640.jpg&p2Src=//y1shangxu.yzimgs.com/uploads//20240703-86404195.jpg&p3Src=//y1shangxu.yzimgs.com/uploads//20240703-61570297.jpg