Stm a53 asme sa53 bs1387 gb/t13793 din2440 din2444 Astm a 106 \asme sa106 Astm a 161 Astm a 179 Astm a 192 Astm a199 Astm a200 Astm a210 Astm a213 Astm a500 Astm a 519 Astm a556 2. Din 17175 Din 2391 Din 2393 Din1629 Din 17121 Api 5l (psl1) Api 5ct Bs970 Bs3059 3. Jis g3441 Jis g 3444 Jis g 3445 Jis g3454 Jis g3455 Jis g3456 Jis g3458 Jis g3460 Jis g 3461 Jis g3462 Jis g3464 Jis g3465 Jis g3467 Jis g3473 4. Api 5ct& api 5l. Gr b, j55, k55, n80, l80, c95 , p110, x42, x46, x52, x70, x80. Bundled in weight of about 1.5 tonne, wrapped in watertight layers and packed in plastic woven cloth.