Grade:ST 52 Size range Inside diameter from 40 to 1000mm, Max length 20 meters. Straightness: 0.5 /1000 Tolerance EXT: DIN 2391 Tolerance INT: ISO H8 Roughness(Ra): 0.2 to 0.4u Type: cold drawing, normalizing treatment, honing. Marking: SunnySteel, ID, OD Length: unfixed length or fixed length Package: banding with steel strips, braiding parcel at outside Conservation: Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends. Impact test: -20Degrees Celsius , 27 J (only for special requirement) High precision cold drawn tube(ready to honed tube) can also be supplied. Packing: Wooden cases, bundle or plastic bags, plywood boxes Our factories through ISO9001:2000 certificate, has aggressive leadships and outstanding professionals. We are able to provide customers with quality products and perfect service in steel pipe and fittings. If you want to know more information, please kind to visit our website. Tel.:+8621-3378 0199 Fax:+8621-5107 9722 http://www.sunnysteel.com E-mail: sales@sunnysteel.com / sumxu@163.com |