螺纹互套 求螺纹护套 螺纹护... 启先实业（上海）有限公司

p1Src=//y2.yzimgs.com/uploads_old/469337/2015010518181530_old.jpg&p2Src=//y2.yzimgs.com/uploads_old/469337/2015010518181543_old.jpg&p3Src=//y2.yzimgs.com/uploads_old/469337/2015010518181554_old.jpg"