CE-V2 gas boiler parts

I. Specifications:
-Diameter: 150mm
-Connection: spigot
II. Body:
-Outer layer      
Material: stainless steel     
Type: SS304/2B      
Thickness: 0.5mm      
Hardness: 200HV      
Tensile strength: 690mPa/mm2      
-Inner layer:
Material: stainless steel     
Type: SS316L/2B      
Thickness: 0.5mm      
Hardness: 177HV      
Tensile strength: 480mPa/mm2  
III. Flame-retardant material
Material: aluminum silicate      
Resistance high temperature: 1,200 C
IV. Features:
-Steel plates are being cut by a laser, which ensures ideal sizes and smooth edges of the products
-Pipes are folded by electronically controlled machines, to form perfectly round shape of the pipe
-Elements are welded in plasma technology, ensuring full air-tightness and good endurance of the connections
V. Purpose: suitable to family