Class is different from the thickness of medium&outer tube.
Class1 1.2mm thickness 3 years warranty Class2 1.5mm thickness 3 years warranty Class3 2.0mm thickness 5 years warranty Class4 2.5mm thickness 5 years warranty
Application and Features
Gas spring, gas lift, gas piston, gas cylinder, gas strut for all kinds chairs Boss chair gas spring:40mm, 60mm, 80mm Office chair gas spring:100mm, 120mm, 140mm Bar chair gas spring:160mm, 180mm, 200mm, 260mm, 330mm Why choose us?
"Quality is our culture" With us, your money is safe, your business is safe. 1. The product has mature technology, wide application and competitive advantages 2. If the quality of the product cannot be guaranteed, no refund will be made 3.Paypal, Western Union, TT and other payment methods are acceptable. 4. Confidentiality Agreement "Trade secret Contract" 5. Quality assurance contract with a warranty period of 3-5 years 6. Free samples are available. Small orders are welcome