电动转速表SZD-21 上海临嘉科教仪器有限公司

p1Src=//y1shangxu.yzimgs.com/uploads//20240703-86239075.jpg&p2Src=//y1shangxu.yzimgs.com/uploads//20240703-68654720.jpg&p3Src=//y1shangxu.yzimgs.com/uploads//20240703-47763508.jpg