Efficiency η: 85%, Rated load succession rate: 35%, Rated output capacity: 10KV.A, , Outline dimension (mm): 490*220*375, Net weight (kg): 17, Rated input current (A): 46A, Rated input voltage: 220V±10%, Output no-load voltage (V): 69V, Specification of welding machine: NBC-250, Power factor COSφ: 0.73.
Basically copy coupon, view price history or create e-mail price alert. Best price?
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.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. Uhm… There’s no price history (in my database) for this product right now. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
1. ($272.15): BGGines
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 and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BG6d2f05, BGTools8
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
We don’t have enough records in database to show price history for this item. BTW: We have only recorded this price: $299.99.
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)).