COMPANY PROFILE: Qingdao Langtech Machinery Co., Ltd, located in Qingdao high technology zone Laoshan district and near Laoshan Mountain, is one high technology personal company specialized in GRP winding pipes machinery and pipes research and production. The GRP products made by our company is introduced by China Construction Department and is one kind of green, energy save and high efficiency items and with high investment return-back ratio.Since foundation, Qingdao Longtech Machinery Compa...View More