$87.39 – Plug: EU Plug, Power: AC 220V, Work: 2.0 ~ 3.2, RMS: 3900W, Current range: 10-120A, Item size: 250 * 240 * 72mm / 9.8 * 9.4 * 2.8in, Welding material: stainless steel / alloy steel / carbon steel / cast iron, Material: ABS + Metal, Electrode type: carbon steel electrode / stainless steel electrode / cast iron electrode.
Latest update shows that Portable Mini Automatic Welding Tool 3900W costs $87.39 (in Banggood). Go down and check coupons out. Remember to check price history if it is available. What is the best price?
Latest price update (UTC time):
Banggood ($87.39)
Banggood warehouse is located in China. Is it a low price? From what I can see this price is higher than average price ($77.24). There is one great coupon!
Link: Banggood product page
Price without coupon: $94.99
1. ($87.39): BGPowerTLS1
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGe245a9, BGSPRING8OFF, BGHONEYSP, BGESJY8, BGALL8, BGPowerTLS2
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Portable Mini Automatic Welding Tool 3900W is here. The lowest price was: $68.99.
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)).