Seamless pipe plant galvanized OD:6-1000mm WT:1-1200mm Grade:GB,ASTM, ... Type:Seamless.welded,hot rolled,cold drawn,ERW Seamless pipe plant galvanizedStandard: JIS, AISI, ASTM, GB, DIN, ENPlace of Origin: TIANJIN ... purpose parts, cutting tools, mechanical parts, petroleum refining equipment, bolts and nuts, pump rods, and kitchenware. Inspection:Chemical Analysis -- Component Analysis--- Spectroscopic ...