Carbide yog cov hlau tawv heev, thib ob tsuas yog pob zeb diamond hauv hardness thiab nyuaj dua li hlau thiab stainless hlau.Nyob rau tib lub sijhawm, nws hnyav tib yam li kub thiab txog ob zaug hnyav li hlau.Tsis tas li ntawd, nws muaj lub zog zoo heev thiab elasticity, tuaj yeem tuav hardness ntawm ...
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