Galvanized water pipes have two production methods: hot dip galvanized and pre-galvanized. The amount of zinc on hot dip galvanized water pipes is thicker, and it is more corrosion-resistant. Customers need to buy them according to their actual use.
Smart timer 500W Half Body Red Light Therapy DevicesVIGPRO 500W red light therapy is an upgraded product which is made of 100pcs 5w high power led diodes which make lighting effective.
1.Decontaminate the melting metal liquid2.Simplified gating system3.Improve the metallurgical structure of the castings4.Reduce impurities of the castings