here is an example:
http://www.amazon.com/Jardin-Plastic-Aquarium-Valves-2-Piece/dp/B00880E1ZY
回复:悬疑格式铁,那个单向阀长的啥样?
所有跟帖:
• this is even cheaper -顺序是否有要求- ♂ (291 bytes) () 05/13/2014 postreply 12:07:56
• NICE:-) 但有个小担心就是拧松的Bleeder screw会Suck空气进取,你涂grease吗? -5W40- ♂ (0 bytes) () 05/13/2014 postreply 12:52:19
• 没有grease,loose bleeder quarter turn, you can hand push piston ba -顺序是否有要求- ♂ (76 bytes) () 05/13/2014 postreply 13:01:47
• 谢谢,回头去渔具店瞅瞅有卖单向阀的没。 -5W40- ♂ (0 bytes) () 05/13/2014 postreply 13:06:02
• 还是不方便,因为 -MoonRiverMe- ♂ (56 bytes) () 05/13/2014 postreply 17:03:04