1、建筑物的冷热水系统，包括集中供热系统；
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3、可直接饮用的纯净水供水系统；
4、中央(集中)空调系统； https://www.huai/环球陶瓷
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PP旋启式止回阀https://www.wastdz.com/,
PP管阀https://www.wastdz.com/,
PP玻璃视镜https://www.wastdz.com/,
PPH管 https://www.pp-gd.com/,
frpp管https://www.zaxxgd.com/，
pph管https://www.zaxxgd.com/，
PP管https://www.zaxxgd.com/，
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PVDF管https://www.zjslsj.com/,
PE管https://www.zjslsj.com/
HDPE管https://www.zjslsj.com/
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5、输送或排放化学介质等工业用管道系统。
