Shandong Tianxing Railway Engineering Co.,xxxxx... is a leading factory which produce various stainless steel and carbon steel series specialize in seamless tube, welding tube,in shape of round,square,rectangle,and D type etc., v can produce according to GB,ASTM,JIC,DIN, OST standard as per customers’ requirement. ERW with outer diameter from 114.3-355.6mm, wall thickness from 3.2-14.3mm,and the largest unit length to 15m,the products include H40,J55,K55,N80 petroleum casing following API5CT standard, X80 per API5L,and line pipes and structural pipes per standard of ASTM A53,DIN17100,GB/T9711.1-1997,GB/T9711.2-1999 Stainless pipes r widely used in petro-chemical , smelt, irrigation, electricity, medical equipment,refrigeration,aviation etc. Quality comply with GB, ASTM, JIC, DIN, OST as per cutomers’ requirement. Specification vary from 6.5-1016mm diameter, wall thickness 1.2-25mm.</p>