ʻO COVNA, kahi mea hana valve me 20 mau makahiki ʻike loea i ka valve motorized, pneumatic actuator valve, solenoid valve, globe valve, gate valve, etc. Certificated by ISO9001:2008. Ua hōʻailona ʻo Mei i kahi huli nui ma COVNA. Ua neʻe mākou i kahi hale hana hou, ʻoi aku ka nui, ākea, ʻoi aku ka nani...
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