Qingzhou Shengqiang Greenhouse Technology Engineering Co.,Ltd.Located at Weifang(Qingzhou) city,Shandong provice,China. The city is the most popular in the production of greenhouse in China.Our factory main produce the plastic greenhouse, pc sheetgreenhosue,glass greenhouse and many greenhouse system for more than 10 years. We have a big professional team.We sincerely hope to establish a good business relationship with you!Welcome to contact to us and visit to our factory!