Cov ntaub ntawv ntawm tooj liab pwm raj yuav tsum yog cov uas muaj zog tensile zoo, qaug zog lub zog, zoo hardness, tsis tshua muaj elongation thiab siab kub conductivity coefficient. Vim li ntawd, cov khoom siv xws li phosphorous deoxidize tooj liab (DHP), CUAG, CR-ZR-CU tau txais los ntawm cov neeg siv ntawm txhua lub teb chaws. Coatings: tooj liab muaj qis hardness uas ua rau qis dua cov cuab yeej los tiv thaiv abrasive. Yog li ntawd, thaj tsam ntawm qhov qis ntawm cov pwm, qhov twg qhov kev ntxhov siab nce siab vim yog cov plhaub, yuav hnav hnyav dua. Txhawm rau ua kom lub neej ntev ntawm cov pwm tooj liab, Uniform pwm sab hauv nto plating nrog qhov tsim nyog hardness yog xav tau. Feem ntau ntawm cov pwm tooj liab tub rau me me billet casting tsis yog siv nyob rau hauv tej qhov system casting qhov twg muaj rigid casting kwj kev txhawb nqa, yog li lawv yog heev rhiab heev rau hnav. Peb siv tawv chrome plating los ua kom lub neej ntawm cov pwm pwm. Plating thickness yuav raug tswj nyob rau hauv qhov zoo tshaj plaws ntau yam. Raws li rau txheej txheej ntawm tooj liab pwm daim hlau, raws li peb lub xyoo dhau los, peb muaj peev xwm muab Cr txheej, Ni-Cr txheej, Ni-Fe txheej kom tau raws li qhov xav tau ntawm ntau tus neeg siv khoom hauv tsev thiab txawv teb chaws.