Ko te rereketanga i waenga i te I-beam S355ML, S460J0, me S235JR Shandong Kungang Metal Technology Co., Ltd he kaiwhakarato o nga hua maitai.Ka whakaratohia e matou te rino hongere, te maitai H-ahua, te ahua-I me etahi atu momo rino, e whakamahia nuitia ana i roto i te hangahanga me te ahumahi ahumahi.L...
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