Waro Tube Tube mo te Whakaaetanga Whakawhitiwhiti Waiata Tono mo nga ngongo i roto i te putorino waro maitai mo te Ratonga Whakawhitiwhiti wai penei i te wai ,te hinu pehanga iti .. Nga Paerewa Whakangao Tube,Steel Grade,Steel Heat Number: GB/T8163,API 5L PSL1,API 5L PSL2, ASTM A106 ,ASME,JIS ,EN10204,EN10205,B...
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