Steel-lined composite pipe precautions

Pre-use maintenance of lined-plastic pipes and pipe fittings and precautions
1. Do not store in the open air for a long time, avoid sunlight, rain, avoid violent collision, multi-layer stacking heavy pile pressure.
2. the sealing surface is absolutely not allowed to scrape, cut, scratch or collide with hard objects.
3.never allow in the lining of the pipe fittings, accessories on the electric welding, wind cutting, fire baking, etc., to be separated by more than 1 meter from the heat source.