... Components,Gas Spring, Gas Lift 2.Model:NT-B, NT-C 3.Warranty:5years 4.Test: SGS BIFMA X5.1 5.Service ... 2---1.5mm, cheaper price, three year warranty(Better)Class 3---2.0mm, expensive price, five year warranty(Much Better)Class ... expensive price, five year warranty (Best)Trade TermFOB Shanghai or C&F price if you needCompanyNameChangzhou Nantai Gas Spring Co., LtdIntroductionNANT ...