NewBest selects high quality of single melted material, BA pipe which manufacturing process are strictly contorlled to achieve extra clean and mirror like inner surface. EP grade products are mostly applied in special gas pipeline which demand extra smoothness and anti-corrosiveness in semi-conductor industry, LCD, OLED, touch panel industry, bio-pharmaceutical industry and vacuum chambers.
New Best guarantees the inner surface roughness Ra＜0.125μm（5μ-in）

NewBest’s MPEP technique was transferred from KOBELCO STEEL TUBE and is applied to the pipe bigger than 19.0mm in OD. The inner surface of MPEP pipes can be even better than BA grade. As the precision buffing ability of MPEP, we accept your special order of SEMI HP（High Purity）Grade, Cr／Fe＞1.0, for the high purity pipeline use without corrosive concern.

Due to the limitation of MPEP process on small size of tubes, NewBest selects high quality of Bright Annealing tubes which the inner surface roughness reaches Ra＜0.3μm（12μ-in）.