... .4001,300GRD-12/31/2"11,6039000,750GRD-12/41/2"11,6041.2001,000GRD-12/51/2"11,6051.5001,250GRD ... -12/61/2"11,6061.8001, ... 500GRD-12/71/2"11,6072.1001,750GRD-12/81/2"11,6082.4002,000GRD-12/101/2"11,60103.0002, ... and we have been the main supplier for customers at home and abroad. With continuous progress, our company has developed ...