1、建筑物的冷热水系统,包括集中供热系统;
http://www.pddeu.com/德语学习,
http://www.pddeu.com/德国留学,
http://www.pddeu.com/德语培训,
http://www.yzsn888.cn/气化板,
http://www.lelejp.cn/daxue.html日本留学,
http://www.bestfriendmusic.com/yamahagangqin.aspx雅马哈钢琴,
http://www.bestfriendmusic.com/yamahagangqin.aspx珠江钢琴,
http://www.bestfriendmusic.com/shitanwei.aspx施坦威钢琴2、建筑物内的采暖系统、包括地板、壁板及辐射采暖系统;
3、可直接饮用的纯净水供水系统;
4、中央(集中)空调系统; http://www.huaiquanchina.com/环球陶瓷
http://www.atlantiia.com/联众庄家,
http://www.oleoral.com/西班牙语学习,
http://www.oleoral.com/西班牙留学,
http://www.jsjinbo.com/钢塑复合管,
http://www.jsjinbo.com/钢衬复合管,
PVDF隔膜阀http://www.jinfgfj.com/,
PVDF球阀http://www.jinfgfj.com/,
PVDF管 http://www.jinfgfj.com/,
http://www.wastdz.com/玻璃钢球阀,
FRP玻璃钢缠绕管http://www.wastdz.com/,
http://www.wastdz.com/玻璃钢管,
PP旋启式止回阀http://www.wastdz.com/,
PP管阀http://www.wastdz.com/,
PP玻璃视镜http://www.wastdz.com/,
PPH管 http://www.pp-gd.com/,
frpp管http://www.zaxxgd.com/,
pph管http://www.zaxxgd.com/,
PP管http://www.zaxxgd.com/,
PVDF管http://www.zaxxgd.com/product-1.html,
PVDF管http://www.zjslsj.com/,
PE管http://www.zjslsj.com/
HDPE管http://www.zjslsj.com/
http://www.bestfriendmusic.com/琴行
5、输送或排放化学介质等工业用管道系统。