BS-EN-10255-Non-alloy-steel-tubes-suitable-for-welding-and-threading-Technical-delivery-conditions
Hebei Haihao GroupBRITISH STANDARDBS EN10255:2004Non-alloy steel tubessuitable for weldingand threading一Technical deliveryconditionsIsa o 'Ado3 pettorquoounThe European Standard E...