PP-H45°承插弯头

PP-H45°对焊弯头

PP-H90°承插弯头

PP-H90°对焊弯头

PP-H棒材

PP-H承插等径三通

PP-H承插法兰适配器

PP-H承插管帽

PP-H承插活接

PP-H承插活接端