... E235,Website:http://www.petrosteels.com, E255, E355 According to PN-EN 10305-1E2354806420104203501631525340- 48023525E255580552085203751239021440- 57025521E355640458075804501045022490- 63035522C34E59055407---44022>\= 46028021C45E72046706---51020>\= 54034018Pipe ...