... ISO9001certificate Shandong liaocheng treasure source steel pipe Co., LTD 01Commodity: low-middle pressure seamless boiler pipe with comeptitive price02Process method: Cold drawn ... For foodstuff, medical equipment, biology, electron, chemical, petroleum, fertilizer, boiler, nuclear energy and etc. 09Packing: In seaworthy wooden cases or ... time: Min. 10-20 days Low/middle-pressure boiler steel tube