ISO 7840 Type A2 (25mm > 51mm). The tube is composed of a black nitrilerubber, with a smooth black chloroprenerubber cover. RMH019 19 3/4" 22 10 30 190 100. RMH016 16 5/8" 25 10 30 160 100. RMH013 13 1/2" 22 10 30 130 100.
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