1) stick crossover valve housing
斗杆转换阀壳
2) stick crossover valve
斗杆转换阀
3) stick crossover housing
斗杆转换器壳
4) stick crossover control valve
斗杆转换控制阀
5) stick crossover valve spool
斗杆转换阀柱塞
6) stick in valve housing
斗杆内缩阀壳体
参考词条