The manufacturer of PVC thermal insulating joinery Wohl, with the headquarters in Vrancea county, has doubled recently the production area in the own factory, in order to increase the processing speed and create a new stream dedicated exclusively to the doors manufacturing activity. Thus, investments in a quantum of about 340,000 euro, will reduce the delivery terms from five to three days. With this business development, it is estimated to obtain an increase of approximately 30% in terms of  turnover, compared with the two million lei recorded in 2014. Also, in last year the sales was 40% higher compared with 2013.