Isu tiri nyanzvi mukugadzira Welded Steel Pipes & Tubes. Isu tiri kupa inogona kusvika kune yepasi rose chiyero senge: ASTM, JIS, DIN, EN, API, BS, Kugadzirwa kwekambani yedu kunoitwa zvinoenderana neTS EN ISO 9001:2000, API5 L, ISO 14001:2004 uye ISO9001,SGS Integra. ...
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