Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
Coupon (336.83 USD): BGCAPITALOS8
(CouponsFromChina.com tip: just apply this code in your cart 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): Bg8a7644, BG8a7644, 00c906, BG00c906, CityadsTool, BGGines, BGPTL088, BG6d2f05, BGTools8, BG589b2e, JanBGCoupon8, BGSaleFeb8, BGSaleAD, BGMARCHSALE, BG20236Tool, BGAUGUST8, BGCOUPERT8
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for TBK 268 Automatic LCD Bezel Heating Separator.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).