diff --git a/EGkSurfBzRuledFromStmFaces.h b/EGkSurfBzRuledFromStmFaces.h
new file mode 100644
index 0000000..d593b6c
--- /dev/null
+++ b/EGkSurfBzRuledFromStmFaces.h
@@ -0,0 +1,37 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2025-2025
+//----------------------------------------------------------------------------
+// File : EGkSurfBzRuledFromStmFaces.h      Data : 15.09.25       Versione : 2.7j1
+// Contenuto : Calcolo di una superficie di Bezier Ruled definita da un sottoinsieme
+//             di facce di una superficie TriMesh
+//
+//
+//
+// Modifiche : 15.09.25 RE Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+#pragma once
+
+#include "EGkSelection.h"
+#include "EGkCurveLine.h"
+#include "/EgtDev/Include/EGkSurfBezier.h"
+#include "/EgtDev/Include/EGkSurfTriMesh.h"
+
+//----------------------- Macro per import/export ----------------------------
+#undef EGK_EXPORT
+#if defined( I_AM_EGK)            // da definirsi solo nella DLL
+   #define EGK_EXPORT __declspec( dllexport)
+#else
+   #define EGK_EXPORT __declspec( dllimport)
+#endif
+
+//-----------------------------------------------------------------------------
+EGK_EXPORT bool GetBezierEdgeCurvesFromSurfs( const CISURFPVECTOR& vSurf, const SELVECTOR& vSurfFace,
+                                     double dLinTol, double dAngTol, const BIPNTVECTOR& vBreakingPts,
+                                     ICRVCOMPOPOVECTOR& vBezierEdges) ;
+EGK_EXPORT bool GetSyncPointsFromBezierCurves( const ICurveComposite* pEdge0, const ICurveComposite* pEdge1,
+                                               ICRVLINEPOVECTOR& vLines) ;
+EGK_EXPORT bool GetAdjStmFacesInTol( const ISurfTriMesh* pStm, const INTVECTOR& vFaceRef, double dAngTol,
+                                     INTVECTOR& vOtherFaces, double dCurvature) ;
diff --git a/EGkTrimming.h b/EGkTrimming.h
new file mode 100644
index 0000000..ab4c53b
--- /dev/null
+++ b/EGkTrimming.h
@@ -0,0 +1,56 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2025-2025
+//----------------------------------------------------------------------------
+// File : EgkTrimming.h      Data : 15.09.25       Versione : 2.7j1
+// Contenuto : Calcolo di una superficie di Bezier Ruled definita da un sottoinsieme
+//             di facce di una superficie TriMesh
+//
+//
+//
+// Modifiche : 15.09.25 RE Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+#pragma once
+
+#include "EGkSelection.h"
+#include "EGkCurveLine.h"
+#include "/EgtDev/Include/EGkSurfBezier.h"
+#include "/EgtDev/Include/EGkSurfTriMesh.h"
+
+//----------------------- Macro per import/export ----------------------------
+#undef EGK_EXPORT
+#if defined( I_AM_EGK)            // da definirsi solo nella DLL
+   #define EGK_EXPORT __declspec( dllexport)
+#else
+   #define EGK_EXPORT __declspec( dllimport)
+#endif
+
+typedef std::vector<ISURFPOVECTOR> ISURFPOMATRIX ;
+typedef std::vector<ICRVCOMPOPOVECTOR> ICRVCOMPOPOMATRIX ;
+
+//-----------------------------------------------------------------------------
+EGK_EXPORT bool GetTrimmingStmAdjTria( const ISurfTriMesh* pStm, const INTVECTOR& vTria, const PNTVECTOR& vPts,
+                                       double dAngTol, double dSize, double dSizeTol, INTVECTOR& vOtherTria) ;
+EGK_EXPORT bool GetTrimmingAdjSurfs( const CISURFPVECTOR& vSurf, const CISURFPVECTOR& vOtherSurf, double dLinTol,
+                                     double dAngTol, double dFaceAngTol,
+                                     INTVECTOR& vIndOtherSurf) ;
+EGK_EXPORT bool GetTrimmingRawEdges( const CISURFPVECTOR& vSurf, const SELVECTOR& vSurfFace,
+                                     double dLinTol, double dAngTol,
+                                     ICRVCOMPOPOVECTOR& vBezierEdges) ;
+EGK_EXPORT bool GetTrimmingBezierEdges( ICRVCOMPOPOVECTOR& vCompoRawEdges, double dLinTol, double dAngTol,
+                                        ICRVCOMPOPOVECTOR& vCompoEdges) ;
+EGK_EXPORT bool GetTrimmingFinalBorders( ICRVCOMPOPOVECTOR& vCompoBezierEdges, double dLinTol,
+                                         double dAngTol, BIPNTVECTOR& vBreakingPts, double dThick, double dThickTol) ;
+EGK_EXPORT bool GetTrimmingFinalBorders( CISURFPVECTOR& vpSurf, const SELVECTOR& vSurfFaces, double dLinTol, double dAngTol, double dThick,
+                                         ICRVCOMPOPOVECTOR& vCompoBezierEdges) ;
+EGK_EXPORT ISurfBezier* GetTrimmingRuledBezier( const CISURFPVECTOR& vSurf, const ICurve* pCrvEdge1, const ICurve* pCrvEdge2,
+                                                double dLinTol, const BIPNTVECTOR& vSyncPoints,
+                                                const INTVECTOR& vIndPriority, const INTVECTOR& vIndVisible) ;
+EGK_EXPORT bool GetTrimmingSurfBzSyncPoints( const ICurve* pCrvEdge1, const ICurve* pCrvEdge2,
+                                             double dLinTol, BIPNTVECTOR& vSyncPoints) ;
+EGK_EXPORT bool GetTrimmingAutoEntities( const CISURFPVECTOR& vSurf, double dShapeLinTol, double dShapeAngTol,
+                                         double dLinTol, double dEdgeLinTol, double dAngTol, double dAngFaceTol,
+                                         const STRVECTOR& vsShapes, ISURFPOMATRIX& matSelSurfMatrix,
+                                         ICRVCOMPOPOMATRIX& matCompoBorders, ISURFBEZPOVECTOR& vSurfBz) ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 0b6a83a..8cd4c4f 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -1498,3 +1498,26 @@ EXE_EXPORT bool ExeRedisAsyncGetMessage( int nIdConnection, const std::string& s
 // Base64
 EXE_EXPORT bool ExeBase64Encode( const std::string& sFile, std::string& sB64Dest) ;
 EXE_EXPORT bool ExeBase64Decode( const std::string& sB64Sou, const std::string& sFile) ;
+
+// Trimming
+EXE_EXPORT bool ExeTrimmingGetSurfTmFaceAdj( int nSurfId, const INTVECTOR& vTria, const PNTVECTOR& vPts,
+                                             double dAngTol, double dSize, double dSizeTol, INTVECTOR& vOtherFaces) ;
+EXE_EXPORT int  ExeTrimmingGetSurfTmFromStmFaces( int nParentId, int nSurfId, const INTVECTOR& vFaces) ;
+EXE_EXPORT bool ExeTrimmingGetAdjSurfs( const INTVECTOR& vSurfId, const INTVECTOR& vOtherSurfId, double dLinTol,
+                                        double dAngTol, double dAngFaceTol, INTVECTOR& vResId) ;
+EXE_EXPORT bool ExeTrimmingGetBorders( int nParentId, const SELVECTOR& vIds, double dLinTol, double dAngTol,
+                                       int& nFirstId,  int& nCount) ;
+EXE_EXPORT bool ExeTrimmingGetBordersByNormals( int nParentId, const SELVECTOR& vIds, double dLinTol,
+                                                double dAngTol, double dThick, Point3d& ptNear, int& nFirstId, int& nCount) ;
+EXE_EXPORT bool ExeTrimmingGetFinalBorders( int nParentId, const INTVECTOR& vCrvBezierId, double dLinTol, double dAngTol,
+                                            const PNTVECTOR& vBreakingPts, double dThick, double dThickTol,
+                                            int& nFirstId, int& nCount) ;
+EXE_EXPORT int  ExeTrimmingGetRuledBezier( int nParentId, const INTVECTOR& vIds, int nEdge1Id, int nEdge2Id, double dLinTol,
+                                           const INTVECTOR& vnLineIds) ;
+EXE_EXPORT bool ExeTrimmingGetSurfBzSyncPoints( int nParentId, int nEdge1Id, int nEdge2Id, double dLinTol,
+                                                int& nFirstId, int& nCount) ;
+EXE_EXPORT bool ExeTrimmingSkimSyncPoints( int nEdge1Id, int nEdge2Id, const INTVECTOR& vnLineId, double dLinTol,
+                                           double dAngTol, int nMaxInvLine) ;
+EXE_EXPORT bool ExeTrimmingAutoSearch( int nParentId, int nSurfLayerId, double dShapeLinTol, double dShapeAngTol,
+                                       double dLinTol, double dEdgeLinTol, double dAngTol, double dAngFaceTol,
+                                       const STRVECTOR& vsShapes) ;