Mercedes Benz air intake hose replacement (comparison of genuine and Chinese after-sales parts)

The air intake hose of the Mercedes E300 9th generation (W212) vehicle was replaced.
The air intake hose is the passage that supplies air to a naturally aspirated engine.
I tried replacing it with Chinese aftermarket parts (20,000 won) from AliExpress.
There is a problem with the hose joint adhesive melting due to the heat of the engine.
Replaced with Mercedes Benz genuine parts (KRW 200,000).
Intake hose part number (pair left and right):
A2720903582
A2720903682
Part number search site:
ssg.asia