Remove through access port with back of clapper first with springend down.
首先通过检修口拆卸阀瓣的后面及其弹簧末端。
2
As springend has promoted WoXinChangDan fourteen years, finally to avenge, destroyed wu, become the yangtze-huaihe region.
如春秋末期有越王勾践卧薪尝胆十四年，终于得以报仇雪恨，消灭了吴国，成为江淮一带的霸王。
3
The piston rod self-locking type gas springend there is a needle valve open the needle valve is self-locking type gas spring can run as the free type gas spring;