I want the test range should be 0.4~1.0ppm. Order QUANTITY IS AROUND 50PCS Please give me your detail Spec and offer.Company Name: TESAN CORP Street Address: # 901 Munwha office 549-36 City: Bupyung-dong, Bupyung-gu Province/State: Incheon Country/Region: South Korea Zip: 403-010 Telephone: 82-32-5252240 Fax: 82-32-5252246
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