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Jiangsu Longcheng Pipeline Equipment Co., Ltd. Jiangsu Longcheng Pipeline Equipment Co., Ltd. is a professional manufacturer and supplier of high/medium/low-pressure pipeline products in carbon steel, stainless steel, and alloy steel. Our main offerings cover flanges, elbows, tees, reducers, bends, heads & caps, expansion joints, steel pipes, anti-corrosion/insulated pipes, and custom complex forgings. We produce to ASME (ANSI), DIN, JIS, GB/T, JB, SH, HG and other standards, and provide tailored non-standard, extra-thick-walled fittings per customer requirements. Our core materials include carbon steel (10#, 20#, ASTM A105, etc.), duplex steel (2205, 2507), stainless steel (304/304L, 316/316L, etc.), and alloy steel (12Cr1MoV, A335P22/P91, etc.). Our products are widely used in petrochemicals, power plants, shipbuilding, gas/heating pipelines, environmental protection, pharmaceuticals, municipal engineering, and more, with a strong domestic market presence. Guided by the philosophy of "quality first, customer-centric", we keep introducing advanced technologies and processes to deliver premium products and comprehensive after-sales service. Your Needs Are Our Goals!