【产品规格】:6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,30,32,34,35,36,38,41,46,50,55,60,65,70(mm)
我公司已经全面通过ISO9001国际质量体系认证