2.Our products are top quality in china which have been used on SCHWING ,PM ,KYOKUTO ,SANY ,ZOOMLION ,CIFA,SINOTRUK(CNHTC),FOTON,XUGONG,CHUTIAN,HAINUO etc and have been recognized by them.3.The HRC of it’s inner wall can reach 60~68 and the serving life of it can increase 3~5 times.4.It is quenched and carried out carburizing chemical treatment on the inner wall.It has a high wear-resistant.5.OEM available from us.Our service……………………………………………………………………………………………………….High Quality:ISO9001, CE, CO certifications etc. All components adopt the qualified materials.100% quality check and durable testing for every product before shipment.Competitive PriceLarge scale production and well trained workers reduce cost greatly,Ximai use the Bottom Price to make you become the most competitive seller in your region.One-Stop ShoppingOur major is concrete pump pipe and forged coupling, we also have several partners,supplying related products so that can meet customers’ needs.Short Lead TimeWe have power production capacity, produce 1500 sets couplings and 500pcs pipes every day.We can have your urgent orders ready in short time.Standard export packageOur package is in conformity with export requirements.We ensure it’s very safe and firm in the course of shipping.Customer ServiceTop sales with professional skills make you never feel difficult to communicate with a factory,all Ximaistaff will stand by you, reply your inquiry and solve your problem, no matter pre-sales or after-sales.