How to adjust the light path of automatic welding machine?

I‘ve got a precious friend-Mr.Jitendra.He comes from India,our story begins from the online store of our company.He consulted with me about the machine he needed.He has a factory with many laborer who are costly and not very efficient.Therefore, their factory was in low-efficiency and production capacity decreased.

17th.Dec.2018, the CHINA TRADE FAIR on textile machinery manufacturing equipment in India Bombay Convention&Exhibition Centre(BCEC) , come to a successful close. The exhibition is Asia's widest textile machinery and equipment exhibition,a collection of textile machinery, Core Technology and Equipment Exhibition. The International Garment Machinery Exhibition and many other sewing equipment related exhibitions.