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WELDING PROCEDURE SPECIFICATION(WPS)YES [√] PREQUALIFIED: ? QUALIFIED BY TESTING: ? Or PROCEDURE QUALIFICATION (or PQR) YES [ ] CODE: AWS D 1.1 CompanyName:Tangshan Yonghe Metallurgical Equipment Manufacturing Co., LTD ? 公司名稱: 唐山市永和冶金設備制 造有限公司 WPS No.: YH201506-2 Rev.: 0 PQR No.: YH-PQR-201506-2 Rev.: 0 Prepared By 編制人 : Date 日期 : Approv