
China Wholesales Duplex Paper with Grey Back 400GSM Duplex Board. Customized Size Available: OEM sizes available such as 700*1000mm, 640*340mm, and 56*65cm. Wide Grammage Range: Available in 230-2500GSM, covering 250gsm to 3000gsm options. Multiple Coating Options: Single side PE coating available with offset printing compatibility. Strong Stiffness: High stiffness for 600-2500gsm sheets, laminated for over 900gsm. Eco-Friendly Certified: Attained SGS, ROHS, and MSDS certifications for environmental safety. Versatile Applications: Ideal for gift boxes, cosmetic boxes, wine boxes, and notebooks. Free Sample Service: Free samples provided with freight collected by the buyer. Flexible Payment Terms: Accepts T/T, L/C at sight, Western Union, and other methods.