About Us. Alex Gumbi is in Parternship with Greaterman Punungwe of GP Trailers Pty Ltd.The combination of the partners will take the business to new heights.We are the Leaders in ConstructionWe offer our customers a wide range of solutions. We have a positive attitude towards competition in the market and feel that it is the best way to stay motivated and to perform at our best.Call Us for the Best Service in Gauteng Facebook Twitter Youtube