Security door factory, do you need to outsource installers?

It's better to wrap one, which is good and safe.

See what material the security door is made of. If it is made of stone, call it a stonemason; If it is made of wood, call a carpenter; If it is made of cement, call it a mason; If it is made of metal, the metal can be divided into "gold, silver, copper, iron, stainless steel" and so on; If your security door is made of gold or platinum, call the goldsmith.

Generally speaking, there is no such thing. Most of them are outsourced, and wages are settled according to the quantity of installation and maintenance. Only regular employees will have insurance.