You can still get them from webike and monotaro, but for higher price, and not sure about the manufacturing status.
https://www.webike.net/sd/25413073/?srsltid=AfmBOoo7mA3HG6WcLyokDZq_Ee-NVfu9-FCtyIOedOy7q2lHolgwIyyX
https://www.monotaro.com/g/02956818/?srsltid=AfmBOoptTwE1-7NDG8nZErj7xdPko9wU-2pI3mYhlRWhMoAlIgM1FyYS

Still not sure about the authenticity of the ali cranks, I know that they sell fake Vforce reeds and Brembo master cylinders on ali, but usually they just sell it as "X part for Y bike" (that look very simillar to a particular brand design), or under their own brand name (my Adelin brake master looks very similar to a Brembo), and not by part number.

For example, MC16/MC18(88) RC valve controller sold under the name "Lixianda"
https://tinyurl.com/5b4jfw76

Not sure whose exhaust "ForSound" knocked off tho
https://tinyurl.com/52dafjtz