We've been in no shutdown industry since 1983 and we have complete production line including iron/steel/PE hot tapping & line stopping machine, sandwich valve and many other fittings, which can be installed and used in anywhere in piping system during the process of maintenance, repairing, alternation, relocation or extending new branch, without any shutdown or interruption, can largely save your time and money. Our products are widely used in gas, petrol, water/waste water treatments and systems and g
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