When I was updating this page the price was $40.99 for Drillpro Cordless Plastic Welder Kit (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Product Type: Cordless Plastic Welder Gun, Brand: Drillpro, Suit For: For Mak 20v Li-ion battery, Heat Time: 1-3 seconds
Latest coupon and price update (UTC):
Banggood ($40.99)
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood. Low/high price? Good price! It’s lower than average one ($43.59)!
Link: Banggood product page
Price: $40.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for Drillpro Cordless Plastic Welder Kit.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).