... China. Technical DataBlack masterbatch Carrier Content35%~75%Carbon black Content15%~70%Moisture percentage≤ 0.16% ... town, Tongan district, Xiamen, ChinaMain ProductsColor Masterbatch & Black Masterbatch & Functional MasterbatchEstablished Year2004Number of Employees115Total RevenueAbove $ ... to do hardness analysis.6. Blow Film Machine to test the plastic bags thickness, smooth ...