Hilavis products are made based on TEMA, ASME and API 660 standards and with different material classes. Some of the materials used are:

Titanium
MONEL 400
Cupronickel
Martensitic Stainless Steel (410, 420...)
Austenitic Stainless Steel (304, 316, 321,...)
Admiralty and Naval Brass
Chrome-Moly
Carbon Steel

 

The | command is called a pipe. It is used to pipe, or transfer, the standard output from the command on its left into the standard input of the command on its right. # First, echo "Hello World" will send Hello World to the standard output.
A pipe simply refers to a temporary software connection between two programs or commands. An area of the main memory is treated like a virtual file to temporarily hold data and pass it from one process to another in a single direction. In OSes like Unix, a pipe passes the output of one process to another process.
The pipe is used to combine two or more commands, and in this, the output of one command acts as input to another command, and this command's output may act as input to the next command, and so on. It can also be visualized as a temporary connection between two or more commands/ programs/ processes.