... domestic waters may reach the boiling point. The specification has φ47/1000mm, 1200mm, 1500mm, 1600mm, also to be possible according to ... ; The performance conforms to ISO3585:1991 Outside caliber and thickness: 47±0.7, δ=1.6±0.1 In caliber and thickness ... than the 25mm hail attack solar energy(Certification ISO:9001:2000) vacuum tube