1, including non-standard carbon steel tanks, tanks, platforms, etc. The raw materials needed to produce these materials are most kinds of profiles and steels: channel steel, angle steel, square pipe, H-beam, I-beam, welded pipe and steel plate. . . The above is used to process non-standard equipment, such as pipe gallery, tank, platform, shelf, etc.
2, including non-standard FRP equipment, barrels, tanks, etc.
3, including non-standard PP, PVC barrels, cans, etc.
4, including pumps, valves, instruments and other equipment.
The above equipment cannot be completed by one company alone.
Therefore, water treatment engineering companies have many subcontractors, such as carbon steel processors, glass fiber reinforced plastic processors, civil engineering (but civil engineering is often outsourced), and other suppliers.
I don't know what you mean? If it is a water treatment engineering company with no scale, it only needs to purchase cutting and welding tools and do some simple equipment processing. Of course, after the development and expansion, it can form a scale, and you can purchase shearing machines, bending machines, automatic welding machines, drum machines and so on. . . . .
Raw materials can store a small amount of 50 angle steel, 100 channel steel, 50 square pipes, 4~6mm steel plates, diamond plates, etc.