The below should give a sufficient introduction to engineering drawing practices. Refer to 'Technical Drawing for Product Design' for detailed information.
Tolerancing refers to the acceptable range of a dimension/characteristic set in an engineering drawing, whereas 'fit' refers to the nature of the mating between parts.
GD&T is an alternative to standard engineering drawing methods, offers greater control over the engineering drawing constraints set.
Anodizing is a process used to increase the durability of a part and its surface. Note that Type III is the appropraite specification for an oxidising environment. (i.e. LOx etc...)
The following resources are provided in order to give members a solid understanding of propulsion theory and practice. Textbooks are provided as references, rather than in expectation of them being read cover-to-cover.
Read these in the order listed:
Provided as extension to the foundational resources:
MCEN90008: Compiled Compressible Flow Notes
Note: The summarised compressible flow section of MCEN90008: Fluid Dynamics, relevant to nozzle theory and supersonic fluid flows in general.
Modern Engineering for Design of Liquid-Propellant Rocket Engines
Note: An excellent follow-on to Rocket Propulsion Elements.
MCEN90008: Full Compressible Flow Notes
Note: The full compressible flow slides from UoM MCEN90008: Fluid Dynamics. (sorry in advance)