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Copper tube (also known as white copper tube)
Internal thread external spiral copper tube
Evaporation copper tube
Condensation copper tube
stainless steel pipe
Titanium tube
Patent for improved heat exchanger structure
Welding the first type of pressure vessel (cylindrical type)
Welding the first type of pressure vessel (jacketed multi-tube type)
High-pressure gas welding equipment (cylindrical type)
Special device for welding high pressure gas (multi-tube type)
Special equipment for welding high-pressure gas (jacketed type)
