Dear Sir/Madam, Shanghai Chengde Enterprise Developing Limited is a joint venture company with American PCC group with 25years history, special make SEAMLESS STEEL PIPE & TUBE with high quality and fast delivery, and we had supplied to most of the well know company all over the world. Such as ALSTOM, SIEMENS, DOOSAN, BECHTEL, RELIANCE and so on. We can make below materials: Seamless alloy Steel Pipe: SA335 P11, P12, P22, P5, P9, P91, P92, WB36 Seamless Carbon steel pipe: SA106 B/C, A333 Gr.6 Seamless line pipe: API 5L X42, X52, X60, X65, X70 With wide size range: Outside Diameter: (25.4mm to 1067mm) x Wall thickness: (4mm to 120mm) With 100% Quality Guarantee of 36 months and free replacement. Attached our detailed company catalog, and sincerely looking forward to cooperation! Ming, Global sales Manager SHANGHAI CHENGDE ENTERPRISE DEVELOPING LIMITED</p>