Choose a reference for your drawing
CSMFG’s engineering reference library brings together ten English-language guides for engineers, inspectors and manufacturing buyers. Use them to read drawing requirements, compare material properties, select an inspection method and plan a manufacturing route.
Start with dimensional tolerances and fits or GD&T symbols and datum requirements for drawing review. For production planning, compare material grades, heat treatment and manufacturing processes.
Browse engineering references
Gauge Management Handbook
Ledgers, periodic calibration, issue and return, reading techniques, gauge selection by tolerance, drawing analysis — ten chapters covering the whole workflow.
TolerancesTolerance Quick Reference
IT tolerance tables, hole-basis preferred fits, general tolerances to GB/T 1804, grade selection and a three-step lookup method.
Welding SymbolsWeld Symbol Reference
Basic symbols, supplementary symbols, weld sizes a·z·b·p, process numbers (111, 135, 141…) and reading examples.
GD&TGD&T Explained: Q&A
Complete symbol table for geometric characteristics, tolerance principles (E/M/L modifiers), with a focus on position tolerance Q&A — TED, M-modifier bonus calculation and inspection methods.
ThreadsThread Types and Inspection
M / G / Rp / NPT / Tr / UNC classification and designation reading, go/no-go gauges, the three-wire method (formula and best wire size) and vision measurement.
Technical DocsTechnical Documents
Navigate technical documents, engineering topic guides and references to commonly used GB, ISO and EN standards.
MaterialMaterials
Enter a grade to look up chemical composition, tensile and yield strength, elongation and hardness for 26 common materials, with ASTM/JIS/EN cross-reference and acceptance notes.
Surface FinishingSurface Finish Reference
Process parameters for 18 finishes such as zinc plating, anodizing, powder coating and Dacromet (including Cu-Ni-Cr multilayer plating), inspection methods, salt-spray reference data and coating-thickness gauge selection (magnetic, eddy current, XRF).
Heat TreatmentHeat Treatment Processes
The four basic treatments, quenching and tempering, carburizing/nitriding, induction hardening, solution treatment and aging; process and hardness data for 26 materials, case-depth evaluation, defects and inspection, drawing callouts, and distortion estimates for cut or slotted parts.
Process SelectionManufacturing Process Selection
Pick the process from the drawing and part function: machining, laser cutting, stamping, casting, forging, extrusion — accuracy and volume-cost comparison for 20 processes, process chains for 14 part families.
From engineering reference to manufacturing review
- Read the drawing: identify the feature, units, datum system, tolerance definition and specified standard edition.
- Plan the inspection: select the gauge or measurement method and agree material condition, coating and heat-treatment requirements.
- Review the process: discuss critical dimensions, quantities and any post-process machining with the manufacturer.
A specified permissible tolerance is an acceptance requirement. Actual process capability must be established from the relevant production and measurement evidence. These guides support engineering review; reference values and material cross-references do not replace the specified standard, drawing or supplier agreement.
Continue to CNC machining, welded fabrication or quality and inspection, or request a manufacturing review with your drawing, material, quantity and critical requirements.
Published by CSMFG · Hub navigation and page information updated . Individual guides contain their own references and scope.