Shaft: ODâ¤1600mm and L â¤12000mm
Regular Trading Process: buyer sends drawings or samples, seller confirm the drawings or samples, buyer confirm the quotation, two parties sign contract, buyer pay advance payment, seller produce according to requirements, surface treatment or none, steel stamp mark or none, seller self-test or the buyer/seller entrust a third party agency, seller deliver the qualify certificate, buyer pay balance payment, seller packages, seller deliver goods, seller deliver the B/L and certificate of origin.