... .High quality 3.Low price 4.Size:10-50mm,50-100mm Company Profile Our company was registered in Hong Kong with the head ... nodulizing agent, inoculant and coke, etc. Besides, we also cooperate with some research institutes in domestic, such as Analytical &Testing Center ... alloy elements can be added as agent, widely used in low-alloy structural steel, spring steel, bearing steel, heat-resistant steel ...