Qingdao Longtech Equipment Co., Ltd, located in Qingdao hi-tech Industrial Zone in Laoshan district is one hi-tech private enterprise specialized in researching and manufacturing GRP filament continuous winding pipe machinery and GRP continuous pipes. The GRP continuously winding pipe line is first developed by our company in China. GRP continuous pipe is a new hi-tech product with absolute advantages such as high stiffness, high efficiency and long life-span. Since foundation, Qingdao Longtech has been persevering in technology innovation and devoted to applications of new machinery, new technology and new technique. It has an excellent technical team and keeps close cooperation with many technology institute and universities. We developed GRP continuous ..