Structure: square-lock formed with electro-galvanized steel Material: electro-galvanized steel (Type MT) / brass plate (Type MB) / aluminum (Type MA) Properties: Flexible and easy to assembly Application: construction and mechanism fields etc. Temperature Range: -25 - 80 , short term up to 100 TypeTrade SizeInsideDiameter(mm)OutsideDiameter(mm)MinMaxMinMaxML-12 3/8"9.529.9614.2215.49ML-16 1/2"15.8816.3821.8423.37ML-20 3/4"20.6221.2126.5428.07ML-25 1"25.426.4233.0235.05ML-32 1-1/4"31.7533.0239.3741.40ML-38 1-1/2"38.140.0146.9949.53ML-51 2"50.852.8359.6962.23ML-64 2-1/2"63.572.6477.72ML-75 3"88.985.3490.42ML-100 4"101.6110.74115.82