一区二三区日韩精品_中文字幕 日韩 国产_国产性色惰视频_欧美一区二区蜜桃视频

PE hot melting socket/ Reducing tee

PE hot melting socket/ Equal tee

PE hot melting socket/ Pipe caps

PE hot melting socket/ Flange

PE hot melting socket/ straight four-port joint

PE hot melting socket/ External thread direct connector

PE hot melting socket/ Internal thread loose joint

PE hot melting socket/ External thread loose joint

PE hot melting socket/ Internal thread direct connector

PE hot melting socket/ Internal thread 90°elbow

PE hot melting socket/External thread 90°elbow

PE hot melting socket/ Internal thread tee