category-1 TAI-FLEX　OT-CATCHER
category-2 YANO STOPPER　YANO STOPPER2　IV CONSTRUCTING-METHOD
category-3 MECH-A-POLY JOINT　V-KING

YANO STOPPER2

photo_YANO STOPPER2

DOUBLE ROLE PER SET

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YANO STOPPER can do both works of making branch pipe under pressure and of installing shut-off valve at existing pipe.

YANO STOPPER can decrease total costs sharply because of small digging area and short executing time.


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