... cup diamond wheel Manufacuturer Best quality Ten years' export experiences ISO 2001:2008 Italy quality glass processing cup ... Poland, Iraq, Czech, Korea, Japan, Tai wan, The United States, Canada Certification ISO9001:2008 Certificate. Outer Diameter100mm, 125mm, ... 180, 240, 320 CompanyEstablished in 1998, Zhengzhou Longda Abrasives Co., Ltd is a specialized enterprise that engages in the research, ...