Xov xwm
-
American txuj ASTM C61400 txhuas bronze bar C61400 tooj liab |cev tooj
C61400 yog ib qho txhuas-bronze nrog zoo heev txhua yam khoom thiab ductility.Haum rau kev siv siab load thiab kev siv lub nkoj siab.Cov hlau tseem tuaj yeem siv tau yooj yim corroded lossis corrosive txheej txheem lossis kev siv.Aluminium bronze muaj ntau dua du ...Nyeem ntxiv -
Siv tseem ceeb hauv kev lag luam (chalcopyrite yog siv hauv kev lag luam los tsim tooj liab)
Tooj liab feem ntau yog siv hauv kev lag luam (kev lag luam chalcopyrite los tsim tooj liab) Qhov cuam tshuam ntawm REACH ntawm peb cov khoom siv tooj liab thiab kev ua lag luam thiab cov neeg siv qis REACH tau txhawj xeeb heev los ntawm kev lag luam tshuaj hauv tsev, tab sis domestic non-ferrous enterpri ...Nyeem ntxiv -
Kev tsom xam rau yav tom ntej sib txawv ntawm tus nqi tooj liab
Tooj liab tab tom taug qab rau nws qhov kev nce ntau tshaj plaws txhua hli txij li lub Plaub Hlis 2021 raws li cov tub ua lag luam thawj koom ruam tias Tuam Tshoj tuaj yeem tso tseg nws txoj cai tsis muaj tus kabmob coronavirus, uas yuav txhawb kev thov.Tooj liab rau lub Peb Hlis tus me nyuam tau nce 3.6% rau $ 3.76 ib phaus, lossis $ 8,274 ib metric ton, ntawm Comex faib ntawm New ...Nyeem ntxiv
