Which is the best industrial control machine in Suzhou? Can cite a ranking

I'll give a ranking, from the market share, Advantech is deservedly the boss, Advantech second, North China Industrial Control second. The others are not. In terms of products Advantech is indeed good to use some, but the price is correspondingly high, and domestic products he is to go agents, after-sales comparison of the general. Advantech and North China Industrial Control of the two products performance is about the same, Advantech price is slightly higher.