... coating 3.Material: Carbon steel ItermDescription1.Materialcarbon steel and stainless steel2.Size3/8,5/8,2/3,1 ... /2,1or M8-M64 and so on3.Payment30% deposite by TT, 70% ... irrevocable at sight.4.ServiceAny problems about the quality, we will pay for the loss or refund5 ... and so on. 10.website: http://en.tzbzj.cn & http://tzbzj.en.alibaba.com Standard implement: DIN, BS, ANSI, GB, ISO Standard Hex ...