ASTM steel trade, the days of steel oil pipe, steel trade

 API5L API 5L line pipe generally refers --API 5L line pipe line pipe, line pipe out of the ground is to oil, gas trade ISO pipe, water pipe through a pipeline to transport the oil and gas industry companies, including seamless line pipe · and welded steel, which has a flat end of the pipe end with threaded end and socket end; its connection welded steel JIS trade, coupling connection, socket connections Contents 1 2 technology development history of a technology editor with the pipeline steel the development of technology and pipe forming, welding technology advances, gradually expanding pipeline with pipe range of applications, particularly in the large-diameter pipe within the scope of the group from the more apparent advantages of wet, plus the cost factor, the pipe has been in the field of pipeline dominant position, limiting the development of stainless steel seamless line pipe. 2004 Seamless line pipe production of about 400,000 t, including the X42-70 API5L grade steel trade, a variety of onshore pipeline and subsea pipeline. API5L line pipe production is currently using micro-alloying heat treatment process, stainless steel seamless pipe production costs are significantly higher, and with the grade increase, as more than X80 grade steel pipeline trade restrictions on carbon equivalent pipe, conventional process of seamless steel tubes is difficult to meet user requirements; present the 12Cr1moV alloy pipe production plant in order to improve its pipeline corrosion resistance, low temperature, high temperature environment of stable performance and carry out research work. In this regard, Tianjin Dali Pu Co. has begun the transformation process. "Thousand Character Classic" full chapter seven propaganda Chinese classical culture: Yuan Song 2014-09-06 yàn mén zǐ sài, jī tián chì chéng Yanmen purple stuffed chicken farm Akagi kūn chí jié shí, jù yě dòng tíng Queensland pool Tateishi , huge wild Dongting kuàng yuǎn mián miǎo, yán xiù yǎo míng Kuangyuan Mianmiao rock Xiu Yao Ming zhì běn yú nóng, wù zī jià sè cure for agriculture, farming works hereby chù zài nán mǔ, wǒ yì shǔ jì Chu load acres south I Shuji Arts shuì shú gòng xīn, quàn shǎng chù zhì new tax cooked tribute advised reward demote and promote mèng kē dūn sù, shǐ yú bǐng zhí Meng Ke Tun factors, history of fish Bingzhi shù jī zhōng yōng, láo qiān jǐn chì end for moderation, labor Qian would like Chik líng yīn chá lǐ, jiàn mào biàn sè hear sound police management, Kam appearance color vision yí jué jiā yóu, miǎn qí zhīzhí Ka Yi Jue initiatives, it is only planted Mian xǐng gōng jī jiè, chǒng zēng kàng jí province bow ridiculed commandment, pet increasing resistance to extreme dài rǔ jìn chǐ, lín gāo xìng jí perilous disgrace nearly shame, Lin Gao fortunate that liǎng shū jiàn jī, jiě zǔ shuí bī two sparse see the machine, the solution group who forced ASTM trade steel, Tianjin Steel Oil pipe, steel pipe provided by the Tianjin Foreign Trade Dali Pu Oil Pipe Co. oil Hattori. Oil Pipe Co., Ltd., Tianjin Da Lipu oil Hattori (www.cnoctgs.com) (www.18822258388.com) Tianjin Jinghai County, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness , and satisfy customer needs. In Dali Pu oil pipe leading the staff warmly welcome all inquiries negotiations to create Dali Pu oil pipe a better future.