... -standard parts, 3. YC have the strict quality control and assurance system to guarantee that our ... products have the consistent quality. 4. Carbide parts YC supply as follows: ... -resistance alloy, plain cast-iron, for making timber cutters.YG814.4-14.889Having higher strength, and ... resisting steel, manganese steel, stainless-steel, high-grade steel. High quality cemented carbide