Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (36.22 USD): BGa58ad7
(CouponsFromChina.com tip: put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG3fe3ea, BG4ee6ef, BGe636ac, BG8b81f5, BG79ae1c, BGY68796, BGcdc549, BG00c906, CityadsTool, BGGines, BG52cd3e, BGPTL088, BGd20877, BGTOPSHAK3
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for Topshak TS-CD4 680W Rework Hot Air.
Price records source(s): Banggood
Click on image to enlarge.
You can set price alert (for Banggood).