I want to weld natural gas pipelines in Shanghai. I wonder how much I can get in a month? I know argon arc welding and electric welding, and photos are ok. I don't know anyone in Shanghai. I want to k

I want to weld natural gas pipelines in Shanghai. I wonder how much I can get in a month? I know argon arc welding and electric welding, and photos are ok. I don't know anyone in Shanghai. I want to know. ... Natural gas pipelines are all welded on site. At present, the market price, RMD, RMD and STT are guaranteed 15000, and the semi-automatic welding cover is also guaranteed 9000. The manual downward welding of cellulose in covered electrode is about 7800, and argon arc welding is generally used when the station is built, which seems to be about 6000.