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Dear Sir or Madam, We got the name of yourcompany from ***** We have the pleasure of introducing ourselves toyou as one of the most reputable pipe-making manufacturer in Chinamainland. Shengdingyuan selects Carbon steel; alloy and specialsteel, all produced buy such well-known steel corporations asshanghai BAOSTEEL Group and XINGCHENG STEEL. Outstanding quality isnot only manifested by its process ability, but also proved bysuperior properties of its end products. l Seamless steel pipe forhigh pressure diesel l Cold-rolled and cold-drawn seamlessprecision tube l Precision inside diameter steel tube for hydraulicand pneumatic cylinder l Seamless steel pipe for structural lSeamless steel tubes for liquid transport l High-pressure seamlesssteel tubes for chemical fertilizer transport Above products onlyoccupy in small parts among all goods in our company .You askedsome questions about products, now, please let me answer yourproblems. Quality: the internal and external surfaces of tube mustbe clean without any oxidization, crack, fold rolling fold, scarand laminar defect. The status of inner and outer surfaces is thesame as that of the process and heat treatment, but the depth ofdefects (*****: scratch mark, bulge and concavity) is not allowedto exceed 0.025mm (such requirement is stricter than DIN2391standard). Quantity: above OD38mm, we supply at lest 5 ton ,otherwise , without problems Delivery: according to your requires,at the same time our company try our best to satisfy your need.Price: our company will quotation when you ask some specificspecification , and our company is manufacturer , which hopes thelong time cooperation with each other , we will no quota you a veryhigh price so that loss the precious clients. We would like toaccept your Hydrostatic Test, as well as we have enough confide inour products. Here is the website of our company. ***** attached isthe picture of our products. If you need more inf