... 4. FF 5. China 1. coupling2. stainless steel3. NC machining4. FF5. China Cangzhou Zhuozheng Metal Product Co.,Ltd 1.stainless steel quick couplings2 ... Material:SS3043.Tolerance:+-0.01mm4. Thread: RD36*1 ... delivery in several day stainless steel coupling, FF, pipe fitting, nc machining, China