... 10 years production experience,5.Strict quality testing,good after-sale service,6.ISO9001:2000 ... ,alloy steel,stainless steel,cast steel,high tensile steel,steel tubes,steel pipe,steel bar, ... product performanceThe process of checking quality:1.Performance testing site2.The cutting workpiece:D12mm 201 Stainless ... damage.2.Do make sure operating speed of machine, does not exceed speed marked on wheel ...