日本日立超硬合金钻头 HITACHI EWSR7.2 深圳市骆伟达科技有限公司

p1Src=//y3.yzimgs.com/uploads/538731/201992-152814534.jpg?watermark/2/text/IOa3seWcs-W4gumqhuS8n-i-vuenkeaKgOaciemZkOWFrOWPuA==/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthWest