Pipeline welding operation requirements

By |2018-09-27T22:01:18+00:00December 7th, 2015|Construction, Engineering|

All instructions, instruments for measuring, testing is used, instruments, test tools must be qualified and accredited through the period used in the period, such as ammeter, temperature and humidity, wind speed meter, voltmeter, weld inspection and feet, infrared thermometer, etc. and so on. Procurement of steel pipe, flanges, welding, pipe fittings, valves and other