Smojers, old chum.
There's some on Evilbay that look identical to Stihl at less than half price
I suspect this might be a reference to 'Actecmax', they've certainly sold thousands, typically £89.99 for 52cc Brushcutters and 58cc chainsaws. (Yes, the price oscillates between £89 and £199).
Now, call me a cynic, but if they were that good, why isnt there an 'Actecmax' distributor in every large town, and not a Stihl one instead? Why do you think they did such a blatant copy of Stihl's colours and layout? Why do Stihls cost several times as much? Why are there no parts or servicing facilities for the cheapies (cos if it has a problem you're meant to chuck it and buy another). Do your really think a fake £10 Rolex has the same degree of reliability and quality as a £5000 genuine one?
Reviews of them are mixed, some users thrilled, others saying the instructions are poor and they had trouble starting them. You can't buy a Stihl over the web; Stihl insist all Distributors show purchasers the correct starting procedure and basic safety measures.
The oldest truest adage out there; you get what you pay for.
Chinese knock-offs are potentially dangerous, particularly chainsaws (although I realise you're probably talking brushcutters) vital parts like the safety break can fail, they are inherently low quality and the overall engineering and reliability bears not a jot of resemblance to the proven and hugely respected companies they are trying to imitate and piggyback on.
Please do yourself a favour; especially if later on you want a chainsaw, buy the genuine kit, not a cheapo knock-off that doesnt have the same quality of build. Your leg is worth more than the £ you'll save, and I've yet to encounter an unhappy Stihl owner. They retain 70% of their value after purchase, because they are superbly engineered to the highest standards and worth every penny. My Chinky brushcutter bust after about 4 hours and went in a skip, cr*p quality brittle metal parts and spares unavailable, utter waste of £149.
BTW, although Stihl are arguably the best chainsaws, when it comes to brushcutters I think Husky, Echo and Kawasaki are perhaps stronger contenders. Some of the smaller Stihl brushcutters use '4 mix' engines to comply with European emission targets and need regular adjustment (theres no benefit to the user) and some have flexible driveshafts that are a bit weak. The Husky 143 R II is a lot of reliable simple grunt for pro level hefty jobs at a relatively decent price, better choice than the similar priced Stihls.