As a leading manufacturer who is specialized in manufacturing of seamless coiled tubing for many years in China. Stainless steel seamless coiled tubing final surface will be bright annealed. According to the standard, all the tubes produced by us always have correct O.D and W.T tolerance. It’s very popular in military, semiconductor, pharmaceutical biotechnology, precision instruments, hydraulic parts, chemicals industry, boilers and heat exchangers, aerospace industry, automotive industry, electronics, petroleum exploration, precision machinery, rail transportation, shipbuilding plants, air-conditioning industry, solar industry, water heater industry etc. They can be used in many others industries fields.(1) Commodity name: Austenitic Stainless Steel Coil Tubes (2) Process method: cold drawn/cold pilgered (3) Material: TP304, TP304L,TP316, TP316L,dual grade 317L , 316Ti, TP321...DIN 17458 EN10216-5 TC1 1.4301 / 1.4307 / 1.4401 / 1.4404 ... (4) Standard: ASTM ( ASME) ,EN, DIN, JIS and etc. (5) Specifications: (a) O.D.:1/4" -3/4" (b) W.T.:0.028"- 0.065" (c) Length:customized, max:1000m/pc. (6) Surface finish: Bright Annealed Finish (7) Delivery conditions: annealed & pickled (8) Applications: widely used in petrol, chemical, pharmacy, foodstuff, machinery, spaceflight, war industry. (9) Boiler gas, hot water heating parts, hardware, shipping, power and other industries. (10) Packing: packed by weaving bags, then protected by seaworthy wooden case.