... to twisting, compressive, and tensile forces A smooth bore that does not impede the passage of probes, tools, etc. Slot SizesBetween ... types 304, 304L, 316, 316L & 430, for example. Sizes· Diameters from 4 in to 80 in· Wall thickness from 3 mm / 0.12 ... . We are professional produce different water well screen pipes in China. Welcome you come to Xinxiang City ,and visit our factory. contact ...