Xav txog qhov sib xyaw ua ke zoo tshaj plaws ntawm cov tawv tawv ntawm tungsten steel thiab fluidity ntawm cov kua hlau ntws los ntawm koj lub tsheb. Txhua me ntsis ntawm luster muaj qhov sib sib zog nqus sib tham ntawm thev naus laus zis thiab kev zoo nkauj, uas qhia txog qhov tsis pom kev cuam tshuam. Ua kua tungsten steel xim zaj duab xis, cia koj lub tsheb tam sim ntawd los ua qhov tseem ceeb ntawm txoj kev.