Heavy duty gas spring for boss chair-nantai gas spring

Name	Gas spring/ gas lift/ gas cylinder/ gas strut/ gas piston
Use	Boss chair/ office chair/ bar chair etc.
Quality	Our goods have good reputation all over the world by high quality, good service and 5 year warranty .
Type	Different Stroke Gas spring in different application of the chairs Boss Chair: 40mm, 60mm, 80mm Office Chair: 100mm, 120mm, 140mm Bar Chair: 160mm,180mm, 200mm, 260mm, 330mm
Samples	Free sample available but shipping cost is not include. Or you can arrange global express company to pick up the samples from our factory. Customizations are always welcomed
Surface Treatment	Cylinder Tube: Powder coating & Chrome Piston Tube: Chrome, QPQ
Class/Standard	Class is different from the thickness of Gas spring's cylinder tube and piston tube Class 1---1.2mm, cheaper price, two year warranty(Normal) Class 2---1.5mm, cheaper price, three year warranty(Better) Class 3---2.0mm, expensive price, five year warranty(Much Better)Class 4---2.5mm, more expensive price, five year warranty (Best)
Trade Term	FOB Shanghai or C&F price if you need