bauxite with high sulfur
closed high sulfur content gas reservoir
Copper nickel high grade matte
EH40 grade high strength hull plate
fat coal with high sulfur content
G high sulfur resistant oil well cement
gas reservoir of high sulfur content
gold ore with high sulfur
High arsenic high sulfur refractory gold concentrate
High arsenic high sulfur tailings
high grade
高级
高
高级别
高年级
高钢级
高牌号
高等级
儿童
保优
高品位
高级的
大坡道
高浓缩的
high grade and thick wall X70 linepipe
High grade and white porcelain
high grade blast furnace burden