... demand.MOQ1 pieceConnectionButt welding (seamless).CertificateISO 9001:2008, CRN in CANADA.,IQ NETApplication rangeOil, Chemical, industry, water conservancy ,electric power ... years. Products have been exported to the USA, EUROPE, CANADA, PANCHO, MIDDLE EAST and so on. We can meet ... materials. We were also certified with ISO9001, CRN in Canada,IQ NET.Our company enjoys high reputation at home and ...