[Price] Honghui ductile iron pipe, ductile iron pipe water prices, Shunxiang ductile pipe provided by Shunxiang ductile pipe. Liaocheng Shunxiang Building Materials Co., Ltd. (www.lcsxjc.com) had been "Business League certification", please rest assured purchase through the entire network, click on the page check "Business League certification icon," the company authentication information. You can also click on the "Business League Service Icons" on this page directly contact our customer service! Building Materials Co., Ltd. mainly produces Liaocheng Shunxiang variety of milling of cast iron pipe, high quality ductile iron pipe, flexible cast iron pipe fittings, cast iron pit wells quality of our products. Flexible pipe expansion joints pickling rust generally conducted with sulfuric or hydrochloric acid. Concentration of sulfuric acid is generally 10 to 15 hours at room temperature soak K9 grade ductile iron pipe prices, such as the acid is heated to a certain degree of heat, rust significantly accelerated. The preparation of sulfuric acid solution, sulfuric acid should be slowly poured into water, sulfuric acid into the water is prohibited. Immersed in the acid at room temperature in a predetermined time range. After the pipeline flexible expansion joints pickling use washing water, sodium carbonate solution with a concentration of 50 and in the final rinse with hot water 2-3 times a ductile iron pipe prices and dried. Building Materials Co., Ltd. mainly produces Liaocheng Shunxiang variety of milling of cast iron pipe, high quality ductile iron pipe, flexible cast iron pipe fittings, cast iron pit wells quality of our products. Hydrogen is not corrosive media? Hydrogen is not corrosive media, but it has soaked in order, because the hydrogen molecule is small, it will enter the crystal lattice of metal inside the metal bubbling. This appearance on thicker metal, perhaps little doubt GB ductile iron pipe prices, but about as long as the transmitter 0.1mm thick film resistive barrier film cartridge, the penetration of hydrogen is very important. Because hydrogen molecules even through some pot metal diaphragm with ductile iron pipe water prices, enter the internal filling solution, so that the filling solution containing gases affect the appearance of ductile iron pipe fittings feature. Hydrogen treatment is soaked in the outer coating of the metal diaphragm.