Epoxy Curing Agent manufacturer / supplier in China, offering Petmp (Pentaerythritol-tetrakis-3-merca ptopropionate), Mercaptan Based Hardener Approx. Gel Time 20minutes Polymercaptan Polythiol Epoxy Curing Agent, Mercaptan Based Hardener Approx. Gel Time 60 Minutes Polymercaptan Polythiol Epoxy Curing Agent and so on.
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