An Yunyi Instrument Co., Ltd

An Yunyi Instrument Co., Ltd. has been in business since 1984, which is longer than most modern suppliers and suggests deep industry experience. They specialize in pressure gauges, a critical component in industrial machinery and manufacturing, making them a potential fit for buyers in oil, gas, or automotive sectors. However, none of their key verification details — work email, phone, or business documents — are confirmed, which raises concerns about legitimacy and ability to respond to urgent inquiries. While their long history is a strength, the lack of verification makes it harder for buyers to trust their contact information or confirm their operations. Buyers should request additional proof, such as a company registration or a sample certificate, before placing large orders. This is common in older Chinese suppliers where formal verification may not be consistently maintained. Without verified contact points, coordination and communication can become slow or unreliable.