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.
You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
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 coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. There’s only 1 record in my database, so I have no idea if the price is OK. One coupon is available. Cool!
Link: Banggood product page
1. ($272.15): BGGines
you should apply the coupon 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): BG6d2f05, BGTools8
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Price history is not available for this item (not enough database records)! The lowest price was $299.99 though.
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)).