Dear Sir/Madam, We are from Shanghai You Zi Wan Import and Export Co. Ltd. a professional boron carbide products producer and exporter of mechanical seals, pneumatic parts and granphite products. Our Boron Carbide nozzle inserts , as a new material, are replacing such abrasives as Ssic, TC, Alumina ect. for its better acid- and alkali- resistance and friction resistance over the latter three abrasives and good function-price ratio . Aside from nozzles, we produce other Boron-Based products including Seals, Bullet Proof Pieces, Wire Drawing Dies, Ceramic Forming Dies, Thread Guides, Armor and Reactor Control Rods, Neutron Absorbing Shielding and special processings according to the drawings supplied by buyers.With advantages of high quality and reasonable prices , our products have set foot on more than 20 countries and regions of Noth America, Europe and South-East Asia where they enjoy great customer satisfaction. Hoping to serve you with our products.Should you need non-standard models, pls feel free let us know and we are very willing to make products according to your specific requirements. Meng Wenyu Impex Director Tel: +86-21-36160633 Fax: +86-21-36160693 E-mail: Website: Office: Suite 1507 3th Blg. Lane 573 Dongfang Rd. Shanghai 200120 China