selang double biru merah selang las oksigen lpg selang double merk NLG 1 Roll isi 100 meter Working pressure 20k = 20,000psi (1.38bar) , bursting pressure 60k = 60,000psi (4bar) Note : harga di atas harga 1 meter minimal order 5 meter berkelipatan 5 meter ya kak terima kasih