... 1.size:1/2" to 8" 2.type: A,B,C,D,E,F,DC,DP, AA ... informations:* family company, have 2 factory* with a history of 16 years* have 10 years' ... 2" to 8*parts" type A, type B, type C, type D, type E, type F, type DC, type DP,type AA, type DD*advantage: economical, convenient ... , simple,*available in a wide ...