・ConstructionLinesはいろいろな設定で図中に下書線を作図するコマンドです ・下書き線割付の簡易版（Divided calculation Litee）もついてます。

図面レイアウト用の分割枠を作成します。

下書き線で割付線を作図します。

Generates 3D model from cross-sections and unfolds it into flat pattern.

This app provides a variety of functions that allow you to handle the clipboard-copied entities in the form of a toolbar for reuse and to categorize the contents by the purpose of the toolbar.

The Express Document Tab program is a utility program that makes it easy to switch between DWG drawings in Autodesk® AutoCAD®.

Draft pipes & fittings of a Fire Fighting System professionally and dynamically.

Professional Drainage Manholes Network Program

Create and Distribute HVAC Diffusers

Dynamic and Generic Cable Tray Program.

Connect your Fire Sprinklers quickly, dynamically and professionally with this program.

Professional and Dynamic Fire Fighting Grooved and Threaded Program.

Create Flexible HVAC Ducts dynamically.

Import and Insert HVAC blocks to current drawing with respect to the selected scale.

Connect from Diffuser or Grill to HVAC Duct.

Drafting PPR Pipes & Fittings of Water Supply System Professionally and Dynamically ( Imperial & Metric ).

Dynamic Wiring program

This program introduces two new 3DSolid edition commands: STRIM that subtracts overlaps without deleting the trimming solid, and SSPLIT that creates separate solids out of any overlapping portion.

Creates 3D steel saddles for horizontal vessels.

PVC Valves 3D allows the user, without having to change the UCS to easily place valves in various 3D views by selecting one of the toggles on the dialog. Includes 117 flanged and socket valves.

Pumps 3D combines all three pumps - Base Mounted End Suction, Horizontal, Split Case, and Vertical In-Line - in one App. Individual Apps for each pump may be purchased separately.

Pumps3D combines all three pumps - Base Mounted End Suction, Horizontal, Split Case, and Vertical In-Line - in one App. Individual Apps for each pump may be purchased separately.

Iron Valves 3D allows the user, without having to change the UCS, to easily place valves in various 3D views by selecting one of the toggles on the dialog. Also, these valves are realistic-looking.

DDList is Autodesk® AutoCAD® basic list command but on steroids.