Shanghai Z&H Hardware Co., Ltd. is a professional manufacturer with many years of experience in producing stainless steel products, including high-quality seamless pipes. Our annual production capacity for stainless steel seamless pipes has reached over 8,000 tons, ensuring reliable supply and consistent quality for our global customers. **Product Specifications:** 1. **Grades:** 304, 304L, 304H, 310S, 316, 316L, 316Ti, 321, 321H, 347, 347H, and more. 2. **Standards:** ASTM, ASME, JIS, GB, DIN, and others. 3. **Dimensions:** Outer Diameter (O.D.): 6mm to 530mm; Wall Thickness (W.T.): 1mm to 40mm. 4. **Application Areas:** Widely used in the petroleum, chemical, machinery, power generation, chemical fiber, pharmaceutical, papermaking, textile dyeing, food processing, and pneumatic components industries. **Our Factory & Product Range** We specialize in manufacturing precision machining parts, castings, auto and motorcycle components, stamped parts, fasteners, and chassis (swing arms). Our commitment to innovation, advanced technology, and strict quality control ensures that we consistently meet and exceed industry standards. **Why Choose Z&H Hardware?** - **Competitive Pricing:** We offer cost-effective solutions tailored to your specific design requirements. - **Quality Assurance:** We ensure all materials meet the required standards. Before production, we provide formal material certificates detailing chemical composition and mechanical properties. Additionally, we can supply a control plan outlining the manufacturing and inspection process. - **Rigorous Quality Control:** Every product undergoes 100% dimensional inspection before delivery to guarantee accuracy and reliability. - **Fast Delivery:** With a dedicated R&D team, modern equipment, and skilled workers, we maintain high productivity and short lead times. - **Excellent Customer Service:** We respond quickly to your inquiries and provide comprehensive after-sales support to ensure complete satisfaction. At Z&H Hardware, we combine technical expertise with customer-centric service to deliver superior stainless steel products that meet the highest industry standards. Contact us today to discuss your needs and experience the difference of working with a trusted and professional manufacturer.

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