... Certifaction:CE,ISO,TUV 4.All standard Professional Supplier of Forged Flange1) Product Name:Forged Flange2) Type of Flange: SLIP-ON, WELDING NECK, ... 000 Tons per YearWe are JINAN SHUANGKE FORGING MECHANICAL CO.,LTD WHICH IS A PROFESSIONAL MANUFACTURE OFFERING VARIETY OF FLANGE,WN,PL, ... ETC.WELCOME TO OUR FACTORY AND HAVE A BUSINESS MEETING,WE WILL SUBMIT THE MOST COMPETIVE PRICE,HIGHEST QUALITY AND ...