Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd Quality Control
Certificates
Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd
Standard:Institutional-Credit-Code
Number:0000002597
Issue Date:2011.10.27
Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd
Standard:SGS Quality Certificate
Number:QIP-ASR189012
Issue Date:2018-01-10
Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd
Standard:Chinese-Credible-Enterprise
Issue Date:2014-08-01
Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd
Standard:Customs-Declaration-Certificates
Issue Date:2011-12-26
Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd
Standard:Quality Management System Certificate
Number:ISO9001:2008
Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd
Standard:Registration License
Issue Date:2011-11-21
Expiry Date:2031-10-20
QC Profile
All products has been passed 10 levels quality control from the powders to the final products .Powders The chemical composition should be checked and should be controlled inside standard.Ready to press powders Some small strips will be made to test its physical propertiesNew Mould Some samples will be made to check its dimensions before mass productionPress The dimensions are checked on siteSintering Micronstructure will be checked after sintingGrindingCarbide Rod will be grinding to h6machiningall end mills machining by computer system in automaticcoatingdifferent coating to sui different requirement on cutting requirement.Packing The dimensions and shapes will be checked again before packing, every end mill will be packing in single one platic boxto protect end mills well.
