Filter Material Co., Ltd. Hangzhou Dual-Sheng

Filter Material Co., Ltd. Hangzhou Dual-Sheng specializes in coffee filters and tea bag paper — niche but growing products in the global beverage supply chain. Being founded in 2012, the company has been active for over a decade, which suggests stability and experience in manufacturing these specific paper-based products. However, none of the key verification points — including business documents, work email, account email, or phone number — are confirmed. This lack of verification raises a red flag for buyers who need to validate the company's legitimacy before placing large orders. Without verified contact or documentation, it's hard to trust the accuracy of product specs, delivery timelines, or pricing. Buyers should request additional proof, such as a company registration or a sample order confirmation, before engaging. While the origin is China — a major hub for paper products — the absence of verification means the buyer must take extra steps to confirm the supplier's reliability.