工程案例
杭州市農村飲水安全提升工程坪山水廠官網延伸供水工程(使用DN150止脫膠圈)
Hangzhou Rural Drinking Water Safety Improvement Project Pingshan Water Plant Official Website Extension Water Supply Project (Using DN150 Non release Rubber Ring)
杭州市農村飲水安全提升工程坪山水廠官網延伸供水工程(使用DN150止脫膠圈)
Hangzhou Rural Drinking Water Safety Improvement Project Pingshan Water Plant Official Website Extension Water Supply Project (Using DN150 Non release Rubber Ring)