Contact Us Have Questions? Please contact us. Business Hours: 8:30 AM - 5:30 PM CST. Hours may change based on seasonality and holidays. Customer Service: 0571-56260873 E-mail: info@wintekco.com I am a Window/Door Hardware Distributor Window/Door Manufacturer Contractor Other Industry Professional Reason for contact Product inquiry OEM Project Inquiry To be a supplier of Wintek Name Email Phone City, State/Province, Country Preferred contact method Email Phone Code We value your privacy.