Announcement - General Guideline, Standard Regulation Open Procedure (Construction Work) Drywall Work Dry Construction Work (Din 18 340); Drywall Work Drywall Work Approx. 380 M2 Gk-Stand Walls Approx. 90 M2 Gk Shaft Walls Approx. 80 M2 Gk Installation Walls Approx. 195 M2 Gk- V ... More