Welcome to the GP Site technical blog. Here you will find practical engineering references, material guides, machining tips, and industry insights for manufacturing professionals.
Technical Reference Tools
Materials Cross-Reference Chart
Quick cross-reference of steel grades and aluminum alloys across GB, ASTM, DIN, and JIS standards.
View Chart Engineering ReferenceHardness Conversion Reference
Quick HRC / HB / HV hardness conversion guide for common mold steels and alloy steels.
View Chart Engineering ReferenceTolerance & Fit Selection Guide
ISO 2768 / GB/T 1804 tolerance interpretation for CNC machining.
View Guide Calculation ToolMaterial Weight Calculator
Weight formulas for round bars, plates, tubes — essential for quoting and shipping.
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