500克试验钢球 BND-Q500 深圳市博纳德精密仪器有限公司

p1Src=//y1.yzimgs.com/uploads/441741/2021623-143422261.jpg?watermark/2/text/5rex5Zyz5biC5Y2a57qz5b6357K-5a-G5Luq5Zmo5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/SouthEast&p2Src=//y1.yzimgs.com/uploads/441741/2021623-143431390.jpg?watermark/2/text/5rex5Zyz5biC5Y2a57qz5b6357K-5a-G5Luq5Zmo5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/SouthEast&p3Src=//y1.yzimgs.com/uploads/441741/2021623-143435858.jpg?watermark/2/text/5rex5Zyz5biC5Y2a57qz5b6357K-5a-G5Luq5Zmo5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/SouthEast"