氧气截止阀应用规范 Application Norm

1、 设计制造按GB12235-59

Design Manafacfure According to GB12235-59

2、 结构长度按GB12221 89

Face to Face According to GB12221 -89

3、 法兰尺寸按JB/T79-94

Flange Dimenaion Accoring to JB/T79-94

4NBA比赛下注_篮球赛事下注、 阀门检查和试验按GB13927

Valve check and Test According to GB13927

氧气截止阀结构 Structure

1NBA比赛下注_篮球赛事下注NBA比赛下注_篮球赛事下注、 产品所有零件均经脱脂处理NBA比赛下注_篮球赛事下注，严格禁油：

Product all components pass through degreasing processing, endures the Oil strictly

2NBA比赛下注_篮球赛事下注NBA比赛下注_篮球赛事下注、 产品采用密封包装NBA比赛下注_篮球赛事下注NBA比赛下注_篮球赛事下注NBA比赛下注_篮球赛事下注NBA比赛下注_篮球赛事下注，防止湿空气和杂质进入阀内NBA比赛下注_篮球赛事下注NBA比赛下注_篮球赛事下注；

The product use the tight pack. Prevents in the wet air and theimpurity admission valve

3NBA比赛下注_篮球赛事下注、 其他技术规范按《钢铁企业氧气管网的若干技术规定》

Other technology standard according to “Iron and tseel enterprise Oxygen Pipe network’s Certain Technical Stipulation”