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By certification 
S312 Flexible Steeliness Water-Proof Sleeve
Water-Proof Sleeve Sleeve id generally applied to the structure with requirement of vibration of water proof in the position,through which tube goes.
On the one hand it contribute to the mounting and dismounting lf the pipes and seepage-proofing;
On the other hand ,it also protect the buildings avokding the damage of water and shock.
NOTE:
1.Please give clear indication of type ,wall thickness and external diameter;
2.The big DN size can be adjusted in accordance with requirement of users;
3.The sizes of the date are select label,so welcome the consultation.
