Qingdao Longreen Industrial Co., ltd is a rubber products manufacturer that consisted mainly by scientific research team, production base and sale's department. We are specialized in air spring , inner tubes so on. Since our company was founded, we have won excellent reputation for our good faith, serious working attitude, high quality products and considerate after-sale service from our customers of all four corners of the globe. We are committed to providing our customers total satisfaction based on our business philosophy"quality first, customer first". As our company is growing to a comprehensive entity, we sincerely invite indivudual and enterprises both from domestic and oversea to cooperate with us for a better future.