，STAINLESS STEEL PIPE 　Stainless steel seamless pipe 　Stainless steel welded pipe 　Stainless steel square pipe ，PIPE FITTINGS 　Butt-welding Elbow 　Tees and Crosses 　Reduer 　Sanitation Quick-install Fittings 　Other fittings ，VALVES 　Butterfly Valve 　Spherical Valve 　Retaining Valve TUV Rheinland Group TUV Rheinland Group TUV Rheinland Group TUV Rheinland Group TUV Rheinland Group TUV Rheinland Group IQNet and CQM CQM hereby certifies that

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