国产操逼视频,无码人妻AV免费一区二区三区 ,免费a级毛片无码无遮挡,国产精品一区二区久久精品

HenanZhechengDiamondToolFactoryisidealfordiamondabrasivesfieldwithgreatconcentrationover15years.Ourfactorycovers4000squarematers,havestandardworkshopof2000squaremeters.Allproductsmanufacturedanddocumentedinaccordancewithexportstandards,syntheticdiamondmicro-powderattains4-5millioncaratspermonth,andthecrusheddiamondcanattain3-4millioncaratspermonthwhichusinghighqualitysourcematerial.Besidessupplydomesticmarket,80%ofourproductsareexportedtoforeigncountriesandregionsasUSA,Italy,andTaiwanetc.Ourprincipleisserviceourcustom,doasourcustomsneed,costumesthefirst,qualityisthefirst,credibilityisthefirst.Seriesproductsareallproducednon-standardproductsuponcustomer'srequirement.