To meet the customers' over-expected pleasure , we have now our solid crew to supply our greatest all round assistance which includes marketing, sales, planning, production, top quality controlling, packing, warehousing and logistics for heat recovery core, Energy Recovery Ventilation System , floor stand air purifier , negative pressure and positive pressure ,Heat recuperative Unit . For additional queries or should you might have any question regarding our goods, make sure you do not hesitate to call us. The product will supply to all over the world, such as Europe, America, Australia,Costa rica , Borussia Dortmund ,Tajikistan , Hungary .We insist on the principle of "Credit being primary, Customers being the king and Quality being the best", we are looking forward to the mutual cooperation with all friends at home and abroad and we will create a bright future of business.