2) Daim ntawv cog lus tsis pub lwm tus paub tuaj yeem kos npe
3) Xya hnub rov qab lav
Tseem ceeb tshaj: peb tuaj yeem muab tsis tau tsuas yog cov khoom lag luam, tab sis kev pabcuam kev daws teeb meem!
Yam khoom | Chemical Composition (%) | Particle Loj | ||||||||||||
B | W | Fe | Si | S | P | C | ||||||||
WB | 5.5 | 93.5 ua | 0.06 ib | 0.001 ib | 0.02 ib | 0.03 ib | 0.01 ib | 325 Mesh |