Customized Fire Couplings Product attributes Part NameQuick connect fire fittings Production processInvestment casting, also say, lost wax casting and precision casting MaterialStainless steel CF8M StandardSA351 Surface treatmentElectro-polishing and machining Surface roughnessRa1.6-6.3 Heat treatmentSolution treatment Tolerance standardVDGP690-D2 class Max. size300mm*300mm Max. weight60.00Kg Shipping status Product details Quick connect fire fittings, its material is CF8M, and is produced by investment casting process. We need to finish the below process, electro-polishing and machining before delivery. Like this fitting or coupling that is usually used in the field of fire system, it’s easy to connect to each other. It improve the work efficiency. RFQ Q, Can we directly purchase this part from your side. A, I’m sorry that you can not purchase it from our side, because it is customized by my customer. Q, How to do it if we also want to buy? A, Please send us your drawing or sample about the part, we will make the tooling according to your drawing, then use your tooling to produce. Q, Do we need to pay the cost of tooling? A, Yes, it is necessary, but the tooling is belong to you, we don’t use it for third party. Q.When can you finish making tooling and samples A.Usually, the samples can be given within around 20 days after receiving your official order.Customized Fire Couplings website:http://www.jd-investmentcasting.com/couplings/fire-couplings/