Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Symbols For Welding Operations






Symbols for Welding Operations

RP Spot welded seam (single row) RP = spot welding

RP Spot welded seam (double row)

RP Spot welded seam (double row offset)

SG Plug weld seam SG = Shielded arc welding

SG Stepped seam





SG Continuous seam

SG Continuous seam (staggered)

Brazing