Eseesega i le va o le Resilient Seated Butterfly Valve ma Metal Seated Butterfly Valve Butterfly valve, e iai le fausaga faʻapitoa, mamanu faigofie, lelei le faʻatinoga, ma faigofie le tausiga.O latou o se tasi o alalaupapa tau pisinisi sili ona lauiloa.Matou te masani...
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