Roche diagnostics VS Johnson & Johnson medical company

Roche Diagnostics ranks first in the diagnosis industry and Roche Pharmaceuticals ranks third in the world. I have never heard of Johnson & Johnson Medical. Roche diagnosis is divided into many departments, such as branch RD: PDC (clinical trial), health care (blood glucose meter, etc. ), TD (pathological equipment, such as fully active immunohistochemical analyzer), MD (such as professional virus PCR), AS (special equipment for scientific research). There are several kinds of PDC: NPT(cobas, hemagglutination, blood gas), IS (luminescence), CC (biochemistry) and so on. It is too complicated. The development prospect ranked 34th among the top 500 companies a few years ago, but now it should have risen several places. Maybe. Roche has one or several dealers in every region of China, which are divided into several levels, such as first, second and third. The first level seems to do everything except AS, and TD, MD and IS are the most profitable. Roche's headquarters in China seems to be in Shanghai, so I don't know about the treatment. If you want to apply, you can go to official website. In addition, if you do well in the subordinate dealers, Roche will hire you, which is extremely unlikely. This possibility only appears once or twice! I haven't heard of Johnson & Johnson Medical, and I don't know much about it. Certainly not as strong as Roche. I don't know which one is good in terms of treatment.