Premium Stainless Steel Blind Flange for Pipe Fitting Applications

Wenzhou Long'an Flange Co., Ltd., proudly established in 2013, finds its strategic home at No. 620 Mingzhu Road, Longwan District, Wenzhou City, Zhejiang Province, China. By capitalizing on Wenzhou’s superior geographical advantages and harnessing the convenient and efficient raw material supply chain of Qingshan Holdings Group, we have meticulously crafted a comprehensive production system for Long'an flange, leveraging our robust forging processes and machining capabilities.
Our company currently boasts over a hundred state-of-the-art CNC lathes, adept at processing high-precision workpieces with diameters under 2000mm. We also feature 10 specialized machining lathes for heavy workpieces and large tubesheets exceeding 2000mm. To ensure each of our clients’ products are meticulously refined in-house, we’ve equipped our facility with 16 high-precision machining centers—comprising 6 three-axis, 3 four-axis, and 3 five-axis centers, alongside 3 grand gantry machining centers and a remarkable 2-meter horizontal machining center. This powerful equipment configuration meets the comprehensive product research and development needs, offering innovative, convenient, and efficient services for our clients’ product evolution.
Our company is fortified by a sophisticated, complete online ERP system that seamlessly integrates the workshop network, from the entry of raw materials to the dispatch of finished products. This system heralds a new era of paperless production, ensuring data accuracy for every single product. Quality control is meticulously maintained at every stage of production, with digital processes securing that each step meets rigorous quality standards, thus guaranteeing the excellence of our products.
We pride ourselves on having independent laboratories, fully equipped with a range of advanced testing equipment. Our facilities include fully automatic direct-reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines, all dedicated to ensuring the highest standards of product quality and reliability.