All ọzọ na-ekweta ịrara onwe ha miri emi imekọ ihe ọnụ na plastic extrusion ubi, karịsịa na nkwonkwo mmepe nke pụrụ iche igwe.
Ekwesiri ighota na GRACE aburula nani igwe eji eme ihe eji eme ihe eji eme ihe na China na OPW.
Obi dị anyị ụtọ ịkọrọ gị na Grace nwalere nke ọma 1st n'ụzọ zuru oke na ihe ọhụrụ 7-layer Petroleum Pipe System na China.
Ọsọ ahịrị ahụ ruru 4.2meters / min nke bụ oge 2.62 karịa igwe US na ndị Europe na-arụ na otu OPW.
Oge nzipu: Dec-25-2018