Product name Seamless Steel Pipe (SMLS) Out Diameter 10.3mm ... . Length Random Length, Fixed Length, SRL, DRL Standard API 5L, API 5CT, ASTM A106, ASTM A53, DIN2440, ISO3183, ISO11960 ... class, prime, newly produced, secondary , stock etc. Certificate API 5L,etc End Plain end, beveled, cut square, grooved ... natural gas industries -for use as casing and tubing for wells, screwed and socketed steel tubes and ...