HDPE大口径双壁波纹管 HDPE双壁波纹管(225-700) DN/ID225SN8 DN/ID300SN8 DN/ID400N8 DN/ID500SN8 DN/ID600SN8 DN/ID700SN8 DN/ID225SN4 DN/ID300SN4 DN/ID40..
主营产品:
HDPE大口径双壁波纹管 HDPE双壁波纹管(225-700) DN/ID225SN8 DN/ID300SN8 DN/ID400N8 DN/ID500SN8 DN/ID600SN8 DN/ID700SN8 DN/ID225SN4 DN/ID300SN4 DN/ID400SN4 DN/ID500SN4 DN/ID600SN4 DN/ID700SN4