ASME B16.33-2012
ASME B16.33-2012 Manually Operated Metallic Gas Valves for Use in Gas Piping Systems Up to 175 psi (Sizes NPS ½ Through NPS 2)谢谢您的分享,金币已奖励! thanks for providing the standard
谢谢分享!!!!!!! 谢谢分享!!!!!!! 多谢分享! 谢谢分享!!!!!!!...................
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