4" Pipes, toothed OD:114.3 mm Thickness: 7.1 mm Standard: API 5L GR B 里面的toothed(有齿轮的）是不是有很多种呀? 标准里面GR B是希腊标准吗？ 谢谢
4" Pipes, toothed
OD:114.3 mm
Thickness: 7.1 mm
Standard: API 5L GR B
里面的toothed(有齿轮的）是不是有很多种呀?
标准里面GR B是希腊标准吗？
谢谢
2楼
OD OUTSIDE DIAMETER
API AMERICAN PETROLEUM INSTITUTE
GR B IS MEAN GRADE B, IS NOT GREECE STANDARD!
API 5L IS THAT
"PURPOSE AND COVERAGE
The purpose of this specification is to provide standards for pipe suitable for use in conveying gas, water, and oil in both the oil and natural gas industries.
This specification covers seamless and welded steel line pipe. It includes plain-end, threaded-end, and belled-end pipe, as well as through-the-flowline (TFL) pipe and pipe with ends prepared for use with special couplings.
Although the plain-end line pipe meeting this specification is primarily intended for field makeup by circumferential welding, the manufacturer will not assume responsibility for field welding.
"
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3楼
呵呵,还是你厉害!!
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4楼
周末公司要开运动会,11号半夜能回来,我还有特别多的东西要问你,回来就要麻烦你了.呵呵
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5楼
不客气！
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