上海祝茂阀门生产以下几种压力和材质：

缓闭式止回阀HH741X-10、缓闭式止回阀HH741X-10Q、缓闭式止回阀HH741X-10C、缓闭式止回阀HH741X-10P、缓闭式止回阀HH741X-10R

缓闭式止回阀HH741X-16、缓闭式止回阀HH741X-16Q、缓闭式止回阀HH741X-16C、缓闭式止回阀HH741X-16P、缓闭式止回阀HH741X-16R

缓闭式止回阀HH741X-25、缓闭式止回阀HH741X-25Q、缓闭式止回阀HH741X-25C、缓闭式止回阀HH741X-25P、缓闭式止回阀HH741X-25R

其压力有以下口径：HH741X-25C/P DN15缓闭止回阀、HH741X-25C/PDN20缓闭止回阀、HH741X-25C/P DN25缓闭止回阀、HH741X-25C/PDN32缓闭止回阀、HH741X-25C/PDN40缓闭止回阀、HH741X-25C/P DN50缓闭止回阀、HH741X-25C/P DN65缓闭止回阀、HH741X-25C/PDN80缓闭止回阀、HH741X-25C/PDN100缓闭止回阀、HH741X-25C/P DN125缓闭止回阀、HH741X-25C/P DN150缓闭止回阀、HH741X-25C/PDN200缓闭止回阀、HH741X-25C/P DN250缓闭止回阀、HH741X-25C/P DN300缓闭止回阀、HH741X-25C/PDN350缓闭止回阀、HH741X-25C/P DN400缓闭止回阀、HH741X-25C/P DN450缓闭止回阀、HH741X-25C/PDN500缓闭止回阀、HH741X-25C/P DN600缓闭止回阀、HH741X-25C/P DN700缓闭止回阀、HH741X-25C/PDN800缓闭止回阀；

其压力有以下口径：HH741X-16C/P DN15缓闭止回阀、HH741X-16C/PDN20缓闭止回阀、HH741X-16C/P DN25缓闭止回阀、HH741X-16C/PDN32缓闭止回阀、HH741X-16C/PDN40缓闭止回阀、HH741X-16C/P DN50缓闭止回阀、HH741X-16C/P DN65缓闭止回阀、HH741X-16C/PDN80缓闭止回阀、HH741X-16C/PDN100缓闭止回阀、HH741X-16C/P DN125缓闭止回阀、HH741X-16C/P DN150缓闭止回阀、HH741X-16C/PDN200缓闭止回阀、HH741X-16C/P DN250缓闭止回阀、HH741X-16C/P DN300缓闭止回阀、HH741X-16C/PDN350缓闭止回阀、HH741X-16C/P DN400缓闭止回阀、HH741X-16C/P DN450缓闭止回阀、HH741X-16C/PDN500缓闭止回阀、HH741X-16C/P DN600缓闭止回阀、HH741X-16C/P DN700缓闭止回阀、HH741X-16C/PDN800缓闭止回阀；