How serious are fertility problems today? People don't want to give birth,can't afford it, and can't give birth that has become the "three mountains". The problem of childbirth is related to the people's livelihood. Whether a country can prosper or n…
TC4(Ti6Al4V) alloy is a medium strength α-β type two-phase titanium alloy containing 6% α-stabilizing element AI and 4% β-stabilizing element V.…
Oil futures tumbled more than $5 a barrel on news that the Biden administration is considering releasing about 1 million barrels a day from the U.S. Strategic Petroleum Reserve (SPR) for several months to cool surging crude prices.Brent crude futures…
Ti6Al4V is a titanium alloy material widely used in the aerospace and medical fields.…