A: double the original data is made of high quality carbon steel spring mattress.
2: double spring mattress in the process of manufacturing appearance after derusting degreasing and phosphating process, can reach the antirust function.
3: spring mattress appearance is varnished technique, our enterprise's spring mattress is through environmental certification, so in terms of environmental protection are guaranteed.
Four: the structure of the spring mattress main screw cement type and upright type, cement type is the application of screw and nut screw head and the mattress mattress frame cohesion strengthened;
Straight insert the head in the mattress unit has a square groove, mattress frame column on the device has a square column, only the square column into the square groove can complete device.
Five: the classification of the double spring mattress can mainly divided into spring spring mattress and circular tube and square tube spring mattress spring mattress.
6: we usually do double Angle of main spring mattress spring mattress and the circular tube spring mattress and square tube spring mattress, colors are gray, mainly the thickness of the steel tube to thick, the thicker the more strong.
