For the huge bulky and difficult adjustment shortcoming of traditional end and side pipe stopper, the wide applicable scope end and side pipe stopper is designed.
针对传统端、侧挡管器体积庞大、调整费时费力等缺陷,设计出一套使用范围较宽的端、侧挡管器。
Integrated block is a generalization of hexahedron around, except to execute components installed side pipe fittings, the other three face plate hydraulic valves can be installed.