Shandong Huan Yu Co.,Ltd. : Shandong Huan Yu Co., Ltd is professional nylon chip raw material manufacturer and compounder. Our company mainly dealing with the long carbon chain nylon PA610,PA612,PA1212 raw material in pellet form. We polymerized those resin by ourself beside we modified them by pre-colored, filled,reinforced, flame retardant.. The PA1212 has been rated to meet PA11 and PA12 standards in respect of performance and indexes.