Dalian Hede Technologies Co., Ltd. is located in Dalian, a beautiful coastal city in north of China. Hede is a high-tech chemical enterprise integrated with R&D, manufacturing and foreign ...
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Teflon® FEP gas sampling bag with PTFE valve & septum port syringe sampling FEV31_1L (air sample bags)
New DEVEX multi-layer foil air/gas sampling bags with stopcock straight valve and septum valve syringe (NDEV31_1L)
Tedlar® PVF Gas Sampling Bag with PTFE dual-valve with silicone septum port TDLC32_200L Tedlar PVF sample VOCs detection
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