hand warmer pcm cooling packs sản xuất trực tuyến

1, Features Phase change material hand warmer They are enclosed high thermal conductivity PCMs PCMs material are dry solid state Non leakage problem of liquid based hand warmer They are with BPA free HDPE as ... Đọc thêm

1, Features Phase change hand warmer, hand heat pack Basically to substitute of conventional hot water pack With HC-PCMs high thermal conductivity phase change material Bio-based PCMs instead of water-based, no ... Đọc thêm