1. Dezheng custom spiral notebooks has been tested in the sound laboratory. It complies with ASTM E90 and ISO 10140-2 for sound blocking and ASTM 423 for sound absorption. Dezheng offers professional and cost-effective custom printing service
2. Adding a logo on this product guarantees free marketing. Anywhere it goes, on transit, people are bound to take notice of this uniquely designed product. Dezheng has strong production capacity, reaching an annual output of RMB 140 million
3. To in tandem with the international quality standards, the product has been subjected to strict quality inspection procedure. Dezheng's products are approved by TUV certification
4. Product quality meets the requirements of international quality standards. Dezheng can refund the sample fee if the order meets the MOQ requirement
1. Dezheng has our own factory as production base to manufacture high quality and low cost Spiral Binding Notebooks.
2. We have a highly proficient team consisting of engineers and production workers. They are mainly responsible for the quality of our products. By utilizing their industry knowledge, they can ensure the best results of our products.
3. Guangzhou Dezheng Printing Co., Ltd. promises custom spiral notebooks warranty for one year, long-term after-sale spare parts service. Ask!