包装包含一个放气阀门，可以无需刺穿包装在微波炉内加热。
It contains a steam valve to allow the pack to be cooked in the microwave without the need for piercing the pack.
全套管道孔板、阀门、法兰及反法兰、紧固件及其它所有附件，所有放水、放气阀门及安全阀。
Full set of pipe orifice, valves, flanges and counter flanges, fasteners and all other attachments, all water release valves, gas release valves and safety valves.
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