EN10219 S355NLH LSAW steel pipeline is non-alloy steel hollow sections under EN10219 specification. H means S355NLH hollow section. S355NLH LSAW steel pipeline is cold formed square or rectangular hollow section.
GBT9711 L290/X42 PSL1 LSAW Pipeline is divided into seamless steel pipe and welded steel pipe, L290/X42 PSL1 LSAW Pipeline is mainly used in water projects, oil and gas industry, chemical industry, agricultural irrigation, urban construction.
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