国际贸易

Ta2O5＞30%，Nb2O5＞10%

More than Ta30% 10Nb

Cr: 62% MIN & 65%MIN C: 1.0%MAX&1.5%MAX Si: 1.5%MAX S: 0.05%MAX P:0.02%MAX SIZE: 10-60 MM

Cr: 57%min C: 9%max Si: 3.5%max S: 0.05%max P: 0.02%max size: 10-60 mm

Si: 70/72/74/75, C: 0.2%, AL: 2%/1.5%, P: 0.04%, S:0.02%, Size：10-50mm/ 50-100mm

Cr > 40% size: 0-1 mm

Cr: 62% MIN & 65%MIN C: 1.0%MAX&1.5%MAX Si: 1.5%MAX S: 0.05%MAX P:0.02%MAX SIZE: 10-60 MM

Cr: 57%min C: 9%max Si: 3.5%max S: 0.05%max P: 0.02%max size: 10-60 mm

Ca28Si50, Ca30Si50, Ca28Si55, Ca30Si55, Ca30Si60; size: 1-3mm, 3-8mm, 10-100mm

Cr > 40% size: 0-1 mm