Tangshan Joyfident Energy-saving Technology Co.,Ltd was founded in 1992, which is a enterprise specialized in R&D and manufacturing of high-end energy-saving windows, doors, certain walls and sun rooms with more than 32 years experience. Our factory covers an area of more than 60000㎡ with more than 100 employees, all production equipment is imported from Germany, which guarantees the superior quality of Joyfident products Our products have passed CE, PHI and ISO9001 certifications, also certifications like”High-tech Technology enterprise”, “Specialization and Innovation Enterprise”, “Model of Door and Window Craftsman” given by government, the energy-saving aluminum clad wood windows were recognized as the first batch of strategic new products of Tangshan City.