H44T-16止回阀H44T-10铜芯止回阀

H71T-150LB铜止回阀H71T-150LB全铜对夹止回阀

H12W-160PH12W-160P立式高压止回阀

H74H-16C止回阀H74H-16C对夹止回阀

H77X-16P止回阀止回阀H77X H77H H77Y H77W

H71X-16H76X-16Q软密封对夹止回阀

H71H-304L止回阀锻CF3对夹止回阀 H71H-304L

H71W-16C止回阀H71W-DN200 锻钢对夹止回阀

H76X-150LB止回阀美标H76X-150LB双瓣对夹止回阀