| 摘要 |
FIELD: mechanics. ^ SUBSTANCE: proposed inspection chamber comprises plastic sleeve, plastic base arranged inside the said sleeve and at least two branches, connected to aforesaid sleeve. Note that the base incorporates flow chute that passes between two said branches. Note also that the base is made up of two separate rigidly interconnected parts, the connection being made by welding, melting or gluing along the parts edges facing each other. The base has a plastic face wall or plastic face ring for connected base parts to rest upon. ^ EFFECT: expanded performances. ^ 15 cl, 27 dwg |
