If you missed any articles before, you may refer to Piping Material Components here and Piping & Instrumentations Diagram here or at the link given below. RheaĪrticle number 003! For clarity of explanation, I found another book to be used as main source of this article (only on this topic).
Raswari (Penerbit Universitas Indonesia, 2007)
Teknologi dan Perencanaan Sistem Perpipaan by Ir.
